diff options
Diffstat (limited to 'drivers/net/wireless/bcm4329/dhd_linux.c')
| -rw-r--r-- | drivers/net/wireless/bcm4329/dhd_linux.c | 3442 |
1 files changed, 3442 insertions, 0 deletions
diff --git a/drivers/net/wireless/bcm4329/dhd_linux.c b/drivers/net/wireless/bcm4329/dhd_linux.c new file mode 100644 index 000000000000..5f5b418abc26 --- /dev/null +++ b/drivers/net/wireless/bcm4329/dhd_linux.c @@ -0,0 +1,3442 @@ +/* + * Broadcom Dongle Host Driver (DHD), Linux-specific network interface + * Basically selected code segments from usb-cdc.c and usb-rndis.c + * + * Copyright (C) 1999-2010, Broadcom Corporation + * + * Unless you and Broadcom execute a separate written software license + * agreement governing use of this software, this software is licensed to you + * under the terms of the GNU General Public License version 2 (the "GPL"), + * available at http://www.broadcom.com/licenses/GPLv2.php, with the + * following added to such license: + * + * As a special exception, the copyright holders of this software give you + * permission to link this software with independent modules, and to copy and + * distribute the resulting executable under terms of your choice, provided that + * you also meet, for each linked independent module, the terms and conditions of + * the license of that module. An independent module is a module which is not + * derived from this software. The special exception does not apply to any + * modifications of the software. + * + * Notwithstanding the above, under no circumstances may you combine this + * software in any way with any other Broadcom software provided under a license + * other than the GPL, without Broadcom's express prior written consent. + * + * $Id: dhd_linux.c,v 1.65.4.9.2.12.2.104.4.40 2011/02/03 19:55:18 Exp $ + */ + +#include <typedefs.h> +#include <linuxver.h> +#include <osl.h> + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/skbuff.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/random.h> +#include <linux/spinlock.h> +#include <linux/ethtool.h> +#include <linux/fcntl.h> +#include <linux/fs.h> +#include <linux/inetdevice.h> +#include <linux/mutex.h> + +#include <asm/uaccess.h> +#include <asm/unaligned.h> + +#include <epivers.h> +#include <bcmutils.h> +#include <bcmendian.h> + +#include <proto/ethernet.h> +#include <dngl_stats.h> +#include <dhd.h> +#include <dhd_bus.h> +#include <dhd_proto.h> +#include <dhd_dbg.h> +#include <wl_iw.h> +#ifdef CONFIG_HAS_WAKELOCK +#include <linux/wakelock.h> +#endif +#ifdef CUSTOMER_HW2 +#include <linux/platform_device.h> +#ifdef CONFIG_WIFI_CONTROL_FUNC +#include <linux/wlan_plat.h> +static struct wifi_platform_data *wifi_control_data = NULL; +#endif +struct semaphore wifi_control_sem; + +static struct resource *wifi_irqres = NULL; + +int wifi_get_irq_number(unsigned long *irq_flags_ptr) +{ + if (wifi_irqres) { + *irq_flags_ptr = wifi_irqres->flags & IRQF_TRIGGER_MASK; + return (int)wifi_irqres->start; + } +#ifdef CUSTOM_OOB_GPIO_NUM + return CUSTOM_OOB_GPIO_NUM; +#else + return -1; +#endif +} + +int wifi_set_carddetect(int on) +{ + printk("%s = %d\n", __FUNCTION__, on); +#ifdef CONFIG_WIFI_CONTROL_FUNC + if (wifi_control_data && wifi_control_data->set_carddetect) { + wifi_control_data->set_carddetect(on); + } +#endif + return 0; +} + +int wifi_set_power(int on, unsigned long msec) +{ + printk("%s = %d\n", __FUNCTION__, on); +#ifdef CONFIG_WIFI_CONTROL_FUNC + if (wifi_control_data && wifi_control_data->set_power) { + wifi_control_data->set_power(on); + } +#endif + if (msec) + mdelay(msec); + return 0; +} + +int wifi_set_reset(int on, unsigned long msec) +{ + DHD_TRACE(("%s = %d\n", __FUNCTION__, on)); +#ifdef CONFIG_WIFI_CONTROL_FUNC + if (wifi_control_data && wifi_control_data->set_reset) { + wifi_control_data->set_reset(on); + } +#endif + if (msec) + mdelay(msec); + return 0; +} + +int wifi_get_mac_addr(unsigned char *buf) +{ + DHD_TRACE(("%s\n", __FUNCTION__)); + if (!buf) + return -EINVAL; +#ifdef CONFIG_WIFI_CONTROL_FUNC + if (wifi_control_data && wifi_control_data->get_mac_addr) { + return wifi_control_data->get_mac_addr(buf); + } +#endif + return -EOPNOTSUPP; +} + +void *wifi_get_country_code(char *ccode) +{ + DHD_TRACE(("%s\n", __FUNCTION__)); +#ifdef CONFIG_WIFI_CONTROL_FUNC + if (!ccode) + return NULL; + if (wifi_control_data && wifi_control_data->get_country_code) { + return wifi_control_data->get_country_code(ccode); + } +#endif + return NULL; +} + +static int wifi_probe(struct platform_device *pdev) +{ +#ifdef CONFIG_WIFI_CONTROL_FUNC + struct wifi_platform_data *wifi_ctrl = + (struct wifi_platform_data *)(pdev->dev.platform_data); + + wifi_control_data = wifi_ctrl; +#endif + + DHD_TRACE(("## %s\n", __FUNCTION__)); + wifi_irqres = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "bcm4329_wlan_irq"); + + wifi_set_power(1, 0); /* Power On */ + wifi_set_carddetect(1); /* CardDetect (0->1) */ + + up(&wifi_control_sem); + return 0; +} + +static int wifi_remove(struct platform_device *pdev) +{ +#ifdef CONFIG_WIFI_CONTROL_FUNC + struct wifi_platform_data *wifi_ctrl = + (struct wifi_platform_data *)(pdev->dev.platform_data); + + wifi_control_data = wifi_ctrl; +#endif + DHD_TRACE(("## %s\n", __FUNCTION__)); + wifi_set_power(0, 0); /* Power Off */ + wifi_set_carddetect(0); /* CardDetect (1->0) */ + + up(&wifi_control_sem); + return 0; +} + +static int wifi_suspend(struct platform_device *pdev, pm_message_t state) +{ + DHD_TRACE(("##> %s\n", __FUNCTION__)); +#if defined(OOB_INTR_ONLY) + bcmsdh_oob_intr_set(0); +#endif /* (OOB_INTR_ONLY) */ + return 0; +} +static int wifi_resume(struct platform_device *pdev) +{ + DHD_TRACE(("##> %s\n", __FUNCTION__)); +#if defined(OOB_INTR_ONLY) + bcmsdh_oob_intr_set(1); +#endif /* (OOB_INTR_ONLY) */ + return 0; +} + +static struct platform_driver wifi_device = { + .probe = wifi_probe, + .remove = wifi_remove, + .suspend = wifi_suspend, + .resume = wifi_resume, + .driver = { + .name = "bcm4329_wlan", + } +}; + +int wifi_add_dev(void) +{ + DHD_TRACE(("## Calling platform_driver_register\n")); + return platform_driver_register(&wifi_device); +} + +void wifi_del_dev(void) +{ + DHD_TRACE(("## Unregister platform_driver_register\n")); + platform_driver_unregister(&wifi_device); +} +#endif /* defined(CUSTOMER_HW2) */ + +static int dhd_device_event(struct notifier_block *this, unsigned long event, + void *ptr); + +static struct notifier_block dhd_notifier = { + .notifier_call = dhd_device_event +}; + +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) +#include <linux/suspend.h> +volatile bool dhd_mmc_suspend = FALSE; +DECLARE_WAIT_QUEUE_HEAD(dhd_dpc_wait); +#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) */ + +#if defined(OOB_INTR_ONLY) +extern void dhd_enable_oob_intr(struct dhd_bus *bus, bool enable); +#endif /* defined(OOB_INTR_ONLY) */ +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)) +MODULE_LICENSE("GPL v2"); +#endif /* LinuxVer */ + +#if LINUX_VERSION_CODE == KERNEL_VERSION(2, 6, 15) +const char * +print_tainted() +{ + return ""; +} +#endif /* LINUX_VERSION_CODE == KERNEL_VERSION(2, 6, 15) */ + +/* Linux wireless extension support */ +#if defined(CONFIG_WIRELESS_EXT) +#include <wl_iw.h> +#endif /* defined(CONFIG_WIRELESS_EXT) */ + +extern int dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len); + +#if defined(CONFIG_HAS_EARLYSUSPEND) +#include <linux/earlysuspend.h> +#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */ + +#ifdef PKT_FILTER_SUPPORT +extern void dhd_pktfilter_offload_set(dhd_pub_t * dhd, char *arg); +extern void dhd_pktfilter_offload_enable(dhd_pub_t * dhd, char *arg, int enable, int master_mode); +#endif + +/* Interface control information */ +typedef struct dhd_if { + struct dhd_info *info; /* back pointer to dhd_info */ + /* OS/stack specifics */ + struct net_device *net; + struct net_device_stats stats; + int idx; /* iface idx in dongle */ + int state; /* interface state */ + uint subunit; /* subunit */ + uint8 mac_addr[ETHER_ADDR_LEN]; /* assigned MAC address */ + bool attached; /* Delayed attachment when unset */ + bool txflowcontrol; /* Per interface flow control indicator */ + char name[IFNAMSIZ+1]; /* linux interface name */ +} dhd_if_t; + +/* Local private structure (extension of pub) */ +typedef struct dhd_info { +#if defined(CONFIG_WIRELESS_EXT) + wl_iw_t iw; /* wireless extensions state (must be first) */ +#endif /* defined(CONFIG_WIRELESS_EXT) */ + + dhd_pub_t pub; + + /* OS/stack specifics */ + dhd_if_t *iflist[DHD_MAX_IFS]; + + struct mutex proto_sem; + wait_queue_head_t ioctl_resp_wait; + struct timer_list timer; + bool wd_timer_valid; + struct tasklet_struct tasklet; + spinlock_t sdlock; + spinlock_t txqlock; + spinlock_t dhd_lock; + + /* Thread based operation */ + bool threads_only; + struct mutex sdsem; + long watchdog_pid; + struct semaphore watchdog_sem; + struct completion watchdog_exited; + long dpc_pid; + struct semaphore dpc_sem; + struct completion dpc_exited; + + /* Wakelocks */ +#ifdef CONFIG_HAS_WAKELOCK + struct wake_lock wl_wifi; /* Wifi wakelock */ + struct wake_lock wl_rxwake; /* Wifi rx wakelock */ +#endif + spinlock_t wl_lock; + int wl_count; + int wl_packet; + +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) + struct mutex wl_start_lock; /* mutex when START called to prevent any other Linux calls */ +#endif + /* Thread to issue ioctl for multicast */ + long sysioc_pid; + struct semaphore sysioc_sem; + struct completion sysioc_exited; + bool set_multicast; + bool set_macaddress; + struct ether_addr macvalue; + wait_queue_head_t ctrl_wait; + atomic_t pend_8021x_cnt; + +#ifdef CONFIG_HAS_EARLYSUSPEND + struct early_suspend early_suspend; +#endif /* CONFIG_HAS_EARLYSUSPEND */ +} dhd_info_t; + +/* Definitions to provide path to the firmware and nvram + * example nvram_path[MOD_PARAM_PATHLEN]="/projects/wlan/nvram.txt" + */ +char firmware_path[MOD_PARAM_PATHLEN]; +char nvram_path[MOD_PARAM_PATHLEN]; + +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) +struct semaphore dhd_registration_sem; +#define DHD_REGISTRATION_TIMEOUT 12000 /* msec : allowed time to finished dhd registration */ +#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */ +/* load firmware and/or nvram values from the filesystem */ +module_param_string(firmware_path, firmware_path, MOD_PARAM_PATHLEN, 0); +module_param_string(nvram_path, nvram_path, MOD_PARAM_PATHLEN, 0); + +/* Error bits */ +module_param(dhd_msg_level, int, 0); + +/* Spawn a thread for system ioctls (set mac, set mcast) */ +uint dhd_sysioc = TRUE; +module_param(dhd_sysioc, uint, 0); + +/* Watchdog interval */ +uint dhd_watchdog_ms = 10; +module_param(dhd_watchdog_ms, uint, 0); + +#ifdef DHD_DEBUG +/* Console poll interval */ +uint dhd_console_ms = 0; +module_param(dhd_console_ms, uint, 0); +#endif /* DHD_DEBUG */ + +/* ARP offload agent mode : Enable ARP Host Auto-Reply and ARP Peer Auto-Reply */ +uint dhd_arp_mode = 0xb; +module_param(dhd_arp_mode, uint, 0); + +/* ARP offload enable */ +uint dhd_arp_enable = TRUE; +module_param(dhd_arp_enable, uint, 0); + +/* Global Pkt filter enable control */ +uint dhd_pkt_filter_enable = TRUE; +module_param(dhd_pkt_filter_enable, uint, 0); + +/* Pkt filter init setup */ +uint dhd_pkt_filter_init = 0; +module_param(dhd_pkt_filter_init, uint, 0); + +/* Pkt filter mode control */ +uint dhd_master_mode = TRUE; +module_param(dhd_master_mode, uint, 1); + +/* Watchdog thread priority, -1 to use kernel timer */ +int dhd_watchdog_prio = 97; +module_param(dhd_watchdog_prio, int, 0); + +/* DPC thread priority, -1 to use tasklet */ +int dhd_dpc_prio = 98; +module_param(dhd_dpc_prio, int, 0); + +/* DPC thread priority, -1 to use tasklet */ +extern int dhd_dongle_memsize; +module_param(dhd_dongle_memsize, int, 0); + +/* Control fw roaming */ +#ifdef CUSTOMER_HW2 +uint dhd_roam = 0; +#else +uint dhd_roam = 1; +#endif + +/* Control radio state */ +uint dhd_radio_up = 1; + +/* Network inteface name */ +char iface_name[IFNAMSIZ]; +module_param_string(iface_name, iface_name, IFNAMSIZ, 0); + +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)) +#define DAEMONIZE(a) daemonize(a); \ + allow_signal(SIGKILL); \ + allow_signal(SIGTERM); +#else /* Linux 2.4 (w/o preemption patch) */ +#define RAISE_RX_SOFTIRQ() \ + cpu_raise_softirq(smp_processor_id(), NET_RX_SOFTIRQ) +#define DAEMONIZE(a) daemonize(); \ + do { if (a) \ + strncpy(current->comm, a, MIN(sizeof(current->comm), (strlen(a) + 1))); \ + } while (0); +#endif /* LINUX_VERSION_CODE */ + +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)) +#define BLOCKABLE() (!in_atomic()) +#else +#define BLOCKABLE() (!in_interrupt()) +#endif + +/* The following are specific to the SDIO dongle */ + +/* IOCTL response timeout */ +int dhd_ioctl_timeout_msec = IOCTL_RESP_TIMEOUT; + +/* Idle timeout for backplane clock */ +int dhd_idletime = DHD_IDLETIME_TICKS; +module_param(dhd_idletime, int, 0); + +/* Use polling */ +uint dhd_poll = FALSE; +module_param(dhd_poll, uint, 0); + +/* Use interrupts */ +uint dhd_intr = TRUE; +module_param(dhd_intr, uint, 0); + +/* SDIO Drive Strength (in milliamps) */ +uint dhd_sdiod_drive_strength = 6; +module_param(dhd_sdiod_drive_strength, uint, 0); + +/* Tx/Rx bounds */ +extern uint dhd_txbound; +extern uint dhd_rxbound; +module_param(dhd_txbound, uint, 0); +module_param(dhd_rxbound, uint, 0); + +/* Deferred transmits */ +extern uint dhd_deferred_tx; +module_param(dhd_deferred_tx, uint, 0); + + + +#ifdef SDTEST +/* Echo packet generator (pkts/s) */ +uint dhd_pktgen = 0; +module_param(dhd_pktgen, uint, 0); + +/* Echo packet len (0 => sawtooth, max 2040) */ +uint dhd_pktgen_len = 0; +module_param(dhd_pktgen_len, uint, 0); +#endif + +/* Version string to report */ +#ifdef DHD_DEBUG +#ifndef SRCBASE +#define SRCBASE "drivers/net/wireless/bcm4329" +#endif +#define DHD_COMPILED "\nCompiled in " SRCBASE +#else +#define DHD_COMPILED +#endif + +static char dhd_version[] = "Dongle Host Driver, version " EPI_VERSION_STR +#ifdef DHD_DEBUG +"\nCompiled in " SRCBASE " on " __DATE__ " at " __TIME__ +#endif +; + + +#if defined(CONFIG_WIRELESS_EXT) +struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev); +#endif /* defined(CONFIG_WIRELESS_EXT) */ + +static void dhd_dpc(ulong data); +/* forward decl */ +extern int dhd_wait_pend8021x(struct net_device *dev); + +#ifdef TOE +#ifndef BDC +#error TOE requires BDC +#endif /* !BDC */ +static int dhd_toe_get(dhd_info_t *dhd, int idx, uint32 *toe_ol); +static int dhd_toe_set(dhd_info_t *dhd, int idx, uint32 toe_ol); +#endif /* TOE */ + +static int dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata, + wl_event_msg_t *event_ptr, void **data_ptr); + +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) +static int dhd_sleep_pm_callback(struct notifier_block *nfb, unsigned long action, void *ignored) +{ + int ret = NOTIFY_DONE; + + switch (action) { + case PM_HIBERNATION_PREPARE: + case PM_SUSPEND_PREPARE: + dhd_mmc_suspend = TRUE; + ret = NOTIFY_OK; + break; + case PM_POST_HIBERNATION: + case PM_POST_SUSPEND: + dhd_mmc_suspend = FALSE; + ret = NOTIFY_OK; + break; + } + smp_mb(); + return ret; +} + +static struct notifier_block dhd_sleep_pm_notifier = { + .notifier_call = dhd_sleep_pm_callback, + .priority = 0 +}; +extern int register_pm_notifier(struct notifier_block *nb); +extern int unregister_pm_notifier(struct notifier_block *nb); +#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) */ + +static void dhd_set_packet_filter(int value, dhd_pub_t *dhd) +{ +#ifdef PKT_FILTER_SUPPORT + DHD_TRACE(("%s: %d\n", __FUNCTION__, value)); + /* 1 - Enable packet filter, only allow unicast packet to send up */ + /* 0 - Disable packet filter */ + if (dhd_pkt_filter_enable) { + int i; + + for (i = 0; i < dhd->pktfilter_count; i++) { + dhd_pktfilter_offload_set(dhd, dhd->pktfilter[i]); + dhd_pktfilter_offload_enable(dhd, dhd->pktfilter[i], + value, dhd_master_mode); + } + } +#endif +} + + + +#if defined(CONFIG_HAS_EARLYSUSPEND) +static int dhd_set_suspend(int value, dhd_pub_t *dhd) +{ + int power_mode = PM_MAX; + /* wl_pkt_filter_enable_t enable_parm; */ + char iovbuf[32]; + int bcn_li_dtim = 3; +#ifdef CUSTOMER_HW2 + uint roamvar = 1; +#endif /* CUSTOMER_HW2 */ + + DHD_TRACE(("%s: enter, value = %d in_suspend = %d\n", + __FUNCTION__, value, dhd->in_suspend)); + + if (dhd && dhd->up) { + if (value && dhd->in_suspend) { + + /* Kernel suspended */ + DHD_TRACE(("%s: force extra Suspend setting \n", __FUNCTION__)); + + dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM, + (char *)&power_mode, sizeof(power_mode)); + + /* Enable packet filter, only allow unicast packet to send up */ + dhd_set_packet_filter(1, dhd); + + /* if dtim skip setup as default force it to wake each thrid dtim + * for better power saving. + * Note that side effect is chance to miss BC/MC packet + */ + bcn_li_dtim = dhd_get_dtim_skip(dhd); + bcm_mkiovar("bcn_li_dtim", (char *)&bcn_li_dtim, + 4, iovbuf, sizeof(iovbuf)); + dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf)); +#ifdef CUSTOMER_HW2 + /* Disable build-in roaming during suspend */ + bcm_mkiovar("roam_off", (char *)&roamvar, 4, iovbuf, sizeof(iovbuf)); + dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf)); +#endif /* CUSTOMER_HW2 */ + + } else { + + /* Kernel resumed */ + DHD_TRACE(("%s: Remove extra suspend setting \n", __FUNCTION__)); + + power_mode = PM_FAST; + dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM, (char *)&power_mode, + sizeof(power_mode)); + + /* disable pkt filter */ + dhd_set_packet_filter(0, dhd); + + /* restore pre-suspend setting for dtim_skip */ + bcm_mkiovar("bcn_li_dtim", (char *)&dhd->dtim_skip, + 4, iovbuf, sizeof(iovbuf)); + + dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf)); +#ifdef CUSTOMER_HW2 + roamvar = dhd_roam; + bcm_mkiovar("roam_off", (char *)&roamvar, 4, iovbuf, sizeof(iovbuf)); + dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf)); +#endif /* CUSTOMER_HW2 */ + } + } + + return 0; +} + +static void dhd_suspend_resume_helper(struct dhd_info *dhd, int val) +{ + dhd_pub_t *dhdp = &dhd->pub; + + dhd_os_wake_lock(dhdp); + dhd_os_proto_block(dhdp); + /* Set flag when early suspend was called */ + dhdp->in_suspend = val; + if (!dhdp->suspend_disable_flag) + dhd_set_suspend(val, dhdp); + dhd_os_proto_unblock(dhdp); + dhd_os_wake_unlock(dhdp); +} + +static void dhd_early_suspend(struct early_suspend *h) +{ + struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend); + + DHD_TRACE(("%s: enter\n", __FUNCTION__)); + + if (dhd) + dhd_suspend_resume_helper(dhd, 1); +} + +static void dhd_late_resume(struct early_suspend *h) +{ + struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend); + + DHD_TRACE(("%s: enter\n", __FUNCTION__)); + + if (dhd) + dhd_suspend_resume_helper(dhd, 0); +} +#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */ + +/* + * Generalized timeout mechanism. Uses spin sleep with exponential back-off until + * the sleep time reaches one jiffy, then switches over to task delay. Usage: + * + * dhd_timeout_start(&tmo, usec); + * while (!dhd_timeout_expired(&tmo)) + * if (poll_something()) + * break; + * if (dhd_timeout_expired(&tmo)) + * fatal(); + */ + +void +dhd_timeout_start(dhd_timeout_t *tmo, uint usec) +{ + tmo->limit = usec; + tmo->increment = 0; + tmo->elapsed = 0; + tmo->tick = 1000000 / HZ; +} + +int +dhd_timeout_expired(dhd_timeout_t *tmo) +{ + /* Does nothing the first call */ + if (tmo->increment == 0) { + tmo->increment = 1; + return 0; + } + + if (tmo->elapsed >= tmo->limit) + return 1; + + /* Add the delay that's about to take place */ + tmo->elapsed += tmo->increment; + + if (tmo->increment < tmo->tick) { + OSL_DELAY(tmo->increment); + tmo->increment *= 2; + if (tmo->increment > tmo->tick) + tmo->increment = tmo->tick; + } else { + wait_queue_head_t delay_wait; + DECLARE_WAITQUEUE(wait, current); + int pending; + init_waitqueue_head(&delay_wait); + add_wait_queue(&delay_wait, &wait); + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(1); + pending = signal_pending(current); + remove_wait_queue(&delay_wait, &wait); + set_current_state(TASK_RUNNING); + if (pending) + return 1; /* Interrupted */ + } + + return 0; +} + +static int +dhd_net2idx(dhd_info_t *dhd, struct net_device *net) +{ + int i = 0; + + ASSERT(dhd); + while (i < DHD_MAX_IFS) { + if (dhd->iflist[i] && (dhd->iflist[i]->net == net)) + return i; + i++; + } + + return DHD_BAD_IF; +} + +int +dhd_ifname2idx(dhd_info_t *dhd, char *name) +{ + int i = DHD_MAX_IFS; + + ASSERT(dhd); + + if (name == NULL || *name == '\0') + return 0; + + while (--i > 0) + if (dhd->iflist[i] && !strncmp(dhd->iflist[i]->name, name, IFNAMSIZ)) + break; + + DHD_TRACE(("%s: return idx %d for \"%s\"\n", __FUNCTION__, i, name)); + + return i; /* default - the primary interface */ +} + +char * +dhd_ifname(dhd_pub_t *dhdp, int ifidx) +{ + dhd_info_t *dhd = (dhd_info_t *)dhdp->info; + + ASSERT(dhd); + + if (ifidx < 0 || ifidx >= DHD_MAX_IFS) { + DHD_ERROR(("%s: ifidx %d out of range\n", __FUNCTION__, ifidx)); + return "<if_bad>"; + } + + if (dhd->iflist[ifidx] == NULL) { + DHD_ERROR(("%s: null i/f %d\n", __FUNCTION__, ifidx)); + return "<if_null>"; + } + + if (dhd->iflist[ifidx]->net) + return dhd->iflist[ifidx]->net->name; + + return "<if_none>"; +} + +static void +_dhd_set_multicast_list(dhd_info_t *dhd, int ifidx) +{ + struct net_device *dev; +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35) + struct netdev_hw_addr *ha; +#else + struct dev_mc_list *mclist; +#endif + uint32 allmulti, cnt; + + wl_ioctl_t ioc; + char *buf, *bufp; + uint buflen; + int ret; + + ASSERT(dhd && dhd->iflist[ifidx]); + dev = dhd->iflist[ifidx]->net; + + NETIF_ADDR_LOCK(dev); +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35) + cnt = netdev_mc_count(dev); +#else + cnt = dev->mc_count; +#endif + NETIF_ADDR_UNLOCK(dev); + + /* Determine initial value of allmulti flag */ + allmulti = (dev->flags & IFF_ALLMULTI) ? TRUE : FALSE; + + /* Send down the multicast list first. */ + buflen = sizeof("mcast_list") + sizeof(cnt) + (cnt * ETHER_ADDR_LEN); + if (!(bufp = buf = MALLOC(dhd->pub.osh, buflen))) { + DHD_ERROR(("%s: out of memory for mcast_list, cnt %d\n", + dhd_ifname(&dhd->pub, ifidx), cnt)); + return; + } + + strcpy(bufp, "mcast_list"); + bufp += strlen("mcast_list") + 1; + + cnt = htol32(cnt); + memcpy(bufp, &cnt, sizeof(cnt)); + bufp += sizeof(cnt); + + NETIF_ADDR_LOCK(dev); +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35) + netdev_for_each_mc_addr(ha, dev) { + if (!cnt) + break; + memcpy(bufp, ha->addr, ETHER_ADDR_LEN); + bufp += ETHER_ADDR_LEN; + cnt--; + } +#else + for (mclist = dev->mc_list; (mclist && (cnt > 0)); cnt--, mclist = mclist->next) { + memcpy(bufp, (void *)mclist->dmi_addr, ETHER_ADDR_LEN); + bufp += ETHER_ADDR_LEN; + } +#endif + NETIF_ADDR_UNLOCK(dev); + + memset(&ioc, 0, sizeof(ioc)); + ioc.cmd = WLC_SET_VAR; + ioc.buf = buf; + ioc.len = buflen; + ioc.set = TRUE; + + ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len); + if (ret < 0) { + DHD_ERROR(("%s: set mcast_list failed, cnt %d\n", + dhd_ifname(&dhd->pub, ifidx), cnt)); + allmulti = cnt ? TRUE : allmulti; + } + + MFREE(dhd->pub.osh, buf, buflen); + + /* Now send the allmulti setting. This is based on the setting in the + * net_device flags, but might be modified above to be turned on if we + * were trying to set some addresses and dongle rejected it... + */ + + buflen = sizeof("allmulti") + sizeof(allmulti); + if (!(buf = MALLOC(dhd->pub.osh, buflen))) { + DHD_ERROR(("%s: out of memory for allmulti\n", dhd_ifname(&dhd->pub, ifidx))); + return; + } + allmulti = htol32(allmulti); + + if (!bcm_mkiovar("allmulti", (void*)&allmulti, sizeof(allmulti), buf, buflen)) { + DHD_ERROR(("%s: mkiovar failed for allmulti, datalen %d buflen %u\n", + dhd_ifname(&dhd->pub, ifidx), (int)sizeof(allmulti), buflen)); + MFREE(dhd->pub.osh, buf, buflen); + return; + } + + + memset(&ioc, 0, sizeof(ioc)); + ioc.cmd = WLC_SET_VAR; + ioc.buf = buf; + ioc.len = buflen; + ioc.set = TRUE; + + ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len); + if (ret < 0) { + DHD_ERROR(("%s: set allmulti %d failed\n", + dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti))); + } + + MFREE(dhd->pub.osh, buf, buflen); + + /* Finally, pick up the PROMISC flag as well, like the NIC driver does */ + + allmulti = (dev->flags & IFF_PROMISC) ? TRUE : FALSE; + allmulti = htol32(allmulti); + + memset(&ioc, 0, sizeof(ioc)); + ioc.cmd = WLC_SET_PROMISC; + ioc.buf = &allmulti; + ioc.len = sizeof(allmulti); + ioc.set = TRUE; + + ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len); + if (ret < 0) { + DHD_ERROR(("%s: set promisc %d failed\n", + dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti))); + } +} + +static int +_dhd_set_mac_address(dhd_info_t *dhd, int ifidx, struct ether_addr *addr) +{ + char buf[32]; + wl_ioctl_t ioc; + int ret; + + DHD_TRACE(("%s enter\n", __FUNCTION__)); + if (!bcm_mkiovar("cur_etheraddr", (char*)addr, ETHER_ADDR_LEN, buf, 32)) { + DHD_ERROR(("%s: mkiovar failed for cur_etheraddr\n", dhd_ifname(&dhd->pub, ifidx))); + return -1; + } + memset(&ioc, 0, sizeof(ioc)); + ioc.cmd = WLC_SET_VAR; + ioc.buf = buf; + ioc.len = 32; + ioc.set = TRUE; + + ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len); + if (ret < 0) { + DHD_ERROR(("%s: set cur_etheraddr failed\n", dhd_ifname(&dhd->pub, ifidx))); + } else { + memcpy(dhd->iflist[ifidx]->net->dev_addr, addr, ETHER_ADDR_LEN); + } + + return ret; +} + +#ifdef SOFTAP +extern struct net_device *ap_net_dev; +/* semaphore that the soft AP CODE waits on */ +extern struct semaphore ap_eth_sema; +#endif + +static void +dhd_op_if(dhd_if_t *ifp) +{ + dhd_info_t *dhd; + int ret = 0, err = 0; +#ifdef SOFTAP + unsigned long flags; +#endif + + ASSERT(ifp && ifp->info && ifp->idx); /* Virtual interfaces only */ + + dhd = ifp->info; + + DHD_TRACE(("%s: idx %d, state %d\n", __FUNCTION__, ifp->idx, ifp->state)); + + switch (ifp->state) { + case WLC_E_IF_ADD: + /* + * Delete the existing interface before overwriting it + * in case we missed the WLC_E_IF_DEL event. + */ + if (ifp->net != NULL) { + DHD_ERROR(("%s: ERROR: netdev:%s already exists, try free & unregister \n", + __FUNCTION__, ifp->net->name)); + netif_stop_queue(ifp->net); + unregister_netdev(ifp->net); + free_netdev(ifp->net); + } + /* Allocate etherdev, including space for private structure */ + if (!(ifp->net = alloc_etherdev(sizeof(dhd)))) { + DHD_ERROR(("%s: OOM - alloc_etherdev\n", __FUNCTION__)); + ret = -ENOMEM; + } + if (ret == 0) { + strcpy(ifp->net->name, ifp->name); + memcpy(netdev_priv(ifp->net), &dhd, sizeof(dhd)); + if ((err = dhd_net_attach(&dhd->pub, ifp->idx)) != 0) { + DHD_ERROR(("%s: dhd_net_attach failed, err %d\n", + __FUNCTION__, err)); + ret = -EOPNOTSUPP; + } else { +#ifdef SOFTAP + flags = dhd_os_spin_lock(&dhd->pub); + /* save ptr to wl0.1 netdev for use in wl_iw.c */ + ap_net_dev = ifp->net; + /* signal to the SOFTAP 'sleeper' thread, wl0.1 is ready */ + up(&ap_eth_sema); + dhd_os_spin_unlock(&dhd->pub, flags); +#endif + DHD_TRACE(("\n ==== pid:%x, net_device for if:%s created ===\n\n", + current->pid, ifp->net->name)); + ifp->state = 0; + } + } + break; + case WLC_E_IF_DEL: + if (ifp->net != NULL) { + DHD_TRACE(("\n%s: got 'WLC_E_IF_DEL' state\n", __FUNCTION__)); + netif_stop_queue(ifp->net); + unregister_netdev(ifp->net); + ret = DHD_DEL_IF; /* Make sure the free_netdev() is called */ + } + break; + default: + DHD_ERROR(("%s: bad op %d\n", __FUNCTION__, ifp->state)); + ASSERT(!ifp->state); + break; + } + + if (ret < 0) { + if (ifp->net) { + free_netdev(ifp->net); + } + dhd->iflist[ifp->idx] = NULL; + MFREE(dhd->pub.osh, ifp, sizeof(*ifp)); +#ifdef SOFTAP + flags = dhd_os_spin_lock(&dhd->pub); + if (ifp->net == ap_net_dev) + ap_net_dev = NULL; /* NULL SOFTAP global as well */ + dhd_os_spin_unlock(&dhd->pub, flags); +#endif /* SOFTAP */ + } +} + +static int +_dhd_sysioc_thread(void *data) +{ + dhd_info_t *dhd = (dhd_info_t *)data; + int i; +#ifdef SOFTAP + bool in_ap = FALSE; + unsigned long flags; +#endif + + DAEMONIZE("dhd_sysioc"); + + while (down_interruptible(&dhd->sysioc_sem) == 0) { + dhd_os_start_lock(&dhd->pub); + dhd_os_wake_lock(&dhd->pub); + for (i = 0; i < DHD_MAX_IFS; i++) { + if (dhd->iflist[i]) { + DHD_TRACE(("%s: interface %d\n",__FUNCTION__, i)); +#ifdef SOFTAP + flags = dhd_os_spin_lock(&dhd->pub); + in_ap = (ap_net_dev != NULL); + dhd_os_spin_unlock(&dhd->pub, flags); +#endif /* SOFTAP */ + if (dhd->iflist[i]->state) + dhd_op_if(dhd->iflist[i]); +#ifdef SOFTAP + if (dhd->iflist[i] == NULL) { + DHD_TRACE(("%s: interface %d just been removed!\n\n", __FUNCTION__, i)); + continue; + } + + if (in_ap && dhd->set_macaddress) { + DHD_TRACE(("attempt to set MAC for %s in AP Mode blocked.\n", dhd->iflist[i]->net->name)); + dhd->set_macaddress = FALSE; + continue; + } + + if (in_ap && dhd->set_multicast) { + DHD_TRACE(("attempt to set MULTICAST list for %s in AP Mode blocked.\n", dhd->iflist[i]->net->name)); + dhd->set_multicast = FALSE; + continue; + } +#endif /* SOFTAP */ + if (dhd->set_multicast) { + dhd->set_multicast = FALSE; + _dhd_set_multicast_list(dhd, i); + } + if (dhd->set_macaddress) { + dhd->set_macaddress = FALSE; + _dhd_set_mac_address(dhd, i, &dhd->macvalue); + } + } + } + dhd_os_wake_unlock(&dhd->pub); + dhd_os_start_unlock(&dhd->pub); + } + DHD_TRACE(("%s: stopped\n",__FUNCTION__)); + complete_and_exit(&dhd->sysioc_exited, 0); +} + +static int +dhd_set_mac_address(struct net_device *dev, void *addr) +{ + int ret = 0; + + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + struct sockaddr *sa = (struct sockaddr *)addr; + int ifidx; + + DHD_TRACE(("%s: Enter\n",__FUNCTION__)); + ifidx = dhd_net2idx(dhd, dev); + if (ifidx == DHD_BAD_IF) + return -1; + + ASSERT(dhd->sysioc_pid >= 0); + memcpy(&dhd->macvalue, sa->sa_data, ETHER_ADDR_LEN); + dhd->set_macaddress = TRUE; + up(&dhd->sysioc_sem); + + return ret; +} + +static void +dhd_set_multicast_list(struct net_device *dev) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + int ifidx; + + DHD_TRACE(("%s: Enter\n",__FUNCTION__)); + ifidx = dhd_net2idx(dhd, dev); + if (ifidx == DHD_BAD_IF) + return; + + ASSERT(dhd->sysioc_pid >= 0); + dhd->set_multicast = TRUE; + up(&dhd->sysioc_sem); +} + +int +dhd_sendpkt(dhd_pub_t *dhdp, int ifidx, void *pktbuf) +{ + int ret; + dhd_info_t *dhd = (dhd_info_t *)(dhdp->info); + + /* Reject if down */ + if (!dhdp->up || (dhdp->busstate == DHD_BUS_DOWN)) { + return -ENODEV; + } + + /* Update multicast statistic */ + if (PKTLEN(dhdp->osh, pktbuf) >= ETHER_ADDR_LEN) { + uint8 *pktdata = (uint8 *)PKTDATA(dhdp->osh, pktbuf); + struct ether_header *eh = (struct ether_header *)pktdata; + + if (ETHER_ISMULTI(eh->ether_dhost)) + dhdp->tx_multicast++; + if (ntoh16(eh->ether_type) == ETHER_TYPE_802_1X) + atomic_inc(&dhd->pend_8021x_cnt); + } + + /* Look into the packet and update the packet priority */ + if ((PKTPRIO(pktbuf) == 0)) + pktsetprio(pktbuf, FALSE); + + /* If the protocol uses a data header, apply it */ + dhd_prot_hdrpush(dhdp, ifidx, pktbuf); + + /* Use bus module to send data frame */ +#ifdef BCMDBUS + ret = dbus_send_pkt(dhdp->dbus, pktbuf, NULL /* pktinfo */); +#else + ret = dhd_bus_txdata(dhdp->bus, pktbuf); +#endif /* BCMDBUS */ + + return ret; +} + +static int +dhd_start_xmit(struct sk_buff *skb, struct net_device *net) +{ + int ret; + void *pktbuf; + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net); + int ifidx; + + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + dhd_os_wake_lock(&dhd->pub); + + /* Reject if down */ + if (!dhd->pub.up || (dhd->pub.busstate == DHD_BUS_DOWN)) { + DHD_ERROR(("%s: xmit rejected pub.up=%d busstate=%d\n", + __FUNCTION__, dhd->pub.up, dhd->pub.busstate)); + netif_stop_queue(net); + /* Send Event when bus down detected during data session */ + if (dhd->pub.busstate == DHD_BUS_DOWN) { + DHD_ERROR(("%s: Event HANG send up\n", __FUNCTION__)); + net_os_send_hang_message(net); + } + dhd_os_wake_unlock(&dhd->pub); + return -ENODEV; + } + + ifidx = dhd_net2idx(dhd, net); + if (ifidx == DHD_BAD_IF) { + DHD_ERROR(("%s: bad ifidx %d\n", __FUNCTION__, ifidx)); + netif_stop_queue(net); + dhd_os_wake_unlock(&dhd->pub); + return -ENODEV; + } + + /* Make sure there's enough room for any header */ + if (skb_headroom(skb) < dhd->pub.hdrlen) { + struct sk_buff *skb2; + + DHD_INFO(("%s: insufficient headroom\n", + dhd_ifname(&dhd->pub, ifidx))); + dhd->pub.tx_realloc++; + skb2 = skb_realloc_headroom(skb, dhd->pub.hdrlen); + dev_kfree_skb(skb); + if ((skb = skb2) == NULL) { + DHD_ERROR(("%s: skb_realloc_headroom failed\n", + dhd_ifname(&dhd->pub, ifidx))); + ret = -ENOMEM; + goto done; + } + } + + /* Convert to packet */ + if (!(pktbuf = PKTFRMNATIVE(dhd->pub.osh, skb))) { + DHD_ERROR(("%s: PKTFRMNATIVE failed\n", + dhd_ifname(&dhd->pub, ifidx))); + dev_kfree_skb_any(skb); + ret = -ENOMEM; + goto done; + } + + ret = dhd_sendpkt(&dhd->pub, ifidx, pktbuf); + +done: + if (ret) + dhd->pub.dstats.tx_dropped++; + else + dhd->pub.tx_packets++; + + dhd_os_wake_unlock(&dhd->pub); + + /* Return ok: we always eat the packet */ + return 0; +} + +void +dhd_txflowcontrol(dhd_pub_t *dhdp, int ifidx, bool state) +{ + struct net_device *net; + dhd_info_t *dhd = dhdp->info; + + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + dhdp->txoff = state; + ASSERT(dhd && dhd->iflist[ifidx]); + net = dhd->iflist[ifidx]->net; + if (state == ON) + netif_stop_queue(net); + else + netif_wake_queue(net); +} + +void +dhd_rx_frame(dhd_pub_t *dhdp, int ifidx, void *pktbuf, int numpkt) +{ + dhd_info_t *dhd = (dhd_info_t *)dhdp->info; + struct sk_buff *skb; + uchar *eth; + uint len; + void * data, *pnext, *save_pktbuf; + int i; + dhd_if_t *ifp; + wl_event_msg_t event; + + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + save_pktbuf = pktbuf; + + for (i = 0; pktbuf && i < numpkt; i++, pktbuf = pnext) { + + pnext = PKTNEXT(dhdp->osh, pktbuf); + PKTSETNEXT(wl->sh.osh, pktbuf, NULL); + + + skb = PKTTONATIVE(dhdp->osh, pktbuf); + + /* Get the protocol, maintain skb around eth_type_trans() + * The main reason for this hack is for the limitation of + * Linux 2.4 where 'eth_type_trans' uses the 'net->hard_header_len' + * to perform skb_pull inside vs ETH_HLEN. Since to avoid + * coping of the packet coming from the network stack to add + * BDC, Hardware header etc, during network interface registration + * we set the 'net->hard_header_len' to ETH_HLEN + extra space required + * for BDC, Hardware header etc. and not just the ETH_HLEN + */ + eth = skb->data; + len = skb->len; + + ifp = dhd->iflist[ifidx]; + if (ifp == NULL) + ifp = dhd->iflist[0]; + + ASSERT(ifp); + skb->dev = ifp->net; + skb->protocol = eth_type_trans(skb, skb->dev); + + if (skb->pkt_type == PACKET_MULTICAST) { + dhd->pub.rx_multicast++; + } + + skb->data = eth; + skb->len = len; + + /* Strip header, count, deliver upward */ + skb_pull(skb, ETH_HLEN); + + /* Process special event packets and then discard them */ + if (ntoh16(skb->protocol) == ETHER_TYPE_BRCM) + dhd_wl_host_event(dhd, &ifidx, +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24) + skb->mac_header, +#else + skb->mac.raw, +#endif + &event, + &data); + + ASSERT(ifidx < DHD_MAX_IFS && dhd->iflist[ifidx]); + if (dhd->iflist[ifidx] && !dhd->iflist[ifidx]->state) + ifp = dhd->iflist[ifidx]; + + if (ifp->net) + ifp->net->last_rx = jiffies; + + dhdp->dstats.rx_bytes += skb->len; + dhdp->rx_packets++; /* Local count */ + + if (in_interrupt()) { + netif_rx(skb); + } else { + /* If the receive is not processed inside an ISR, + * the softirqd must be woken explicitly to service + * the NET_RX_SOFTIRQ. In 2.6 kernels, this is handled + * by netif_rx_ni(), but in earlier kernels, we need + * to do it manually. + */ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0) + netif_rx_ni(skb); +#else + ulong flags; + netif_rx(skb); + local_irq_save(flags); + RAISE_RX_SOFTIRQ(); + local_irq_restore(flags); +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0) */ + } + } + dhd_os_wake_lock_timeout_enable(dhdp); +} + +void +dhd_event(struct dhd_info *dhd, char *evpkt, int evlen, int ifidx) +{ + /* Linux version has nothing to do */ + return; +} + +void +dhd_txcomplete(dhd_pub_t *dhdp, void *txp, bool success) +{ + uint ifidx; + dhd_info_t *dhd = (dhd_info_t *)(dhdp->info); + struct ether_header *eh; + uint16 type; + + dhd_prot_hdrpull(dhdp, &ifidx, txp); + + eh = (struct ether_header *)PKTDATA(dhdp->osh, txp); + type = ntoh16(eh->ether_type); + + if (type == ETHER_TYPE_802_1X) + atomic_dec(&dhd->pend_8021x_cnt); + +} + +static struct net_device_stats * +dhd_get_stats(struct net_device *net) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net); + dhd_if_t *ifp; + int ifidx; + + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + ifidx = dhd_net2idx(dhd, net); + if (ifidx == DHD_BAD_IF) + return NULL; + + ifp = dhd->iflist[ifidx]; + ASSERT(dhd && ifp); + + if (dhd->pub.up) { + /* Use the protocol to get dongle stats */ + dhd_prot_dstats(&dhd->pub); + } + + /* Copy dongle stats to net device stats */ + ifp->stats.rx_packets = dhd->pub.dstats.rx_packets; + ifp->stats.tx_packets = dhd->pub.dstats.tx_packets; + ifp->stats.rx_bytes = dhd->pub.dstats.rx_bytes; + ifp->stats.tx_bytes = dhd->pub.dstats.tx_bytes; + ifp->stats.rx_errors = dhd->pub.dstats.rx_errors; + ifp->stats.tx_errors = dhd->pub.dstats.tx_errors; + ifp->stats.rx_dropped = dhd->pub.dstats.rx_dropped; + ifp->stats.tx_dropped = dhd->pub.dstats.tx_dropped; + ifp->stats.multicast = dhd->pub.dstats.multicast; + + return &ifp->stats; +} + +static int +dhd_watchdog_thread(void *data) +{ + dhd_info_t *dhd = (dhd_info_t *)data; + + /* This thread doesn't need any user-level access, + * so get rid of all our resources + */ +#ifdef DHD_SCHED + if (dhd_watchdog_prio > 0) { + struct sched_param param; + param.sched_priority = (dhd_watchdog_prio < MAX_RT_PRIO)? + dhd_watchdog_prio:(MAX_RT_PRIO-1); + setScheduler(current, SCHED_FIFO, ¶m); + } +#endif /* DHD_SCHED */ + + DAEMONIZE("dhd_watchdog"); + + /* Run until signal received */ + while (1) { + if (down_interruptible (&dhd->watchdog_sem) == 0) { + dhd_os_sdlock(&dhd->pub); + if (dhd->pub.dongle_reset == FALSE) { + DHD_TIMER(("%s:\n", __FUNCTION__)); + /* Call the bus module watchdog */ + dhd_bus_watchdog(&dhd->pub); + + /* Count the tick for reference */ + dhd->pub.tickcnt++; + + /* Reschedule the watchdog */ + if (dhd->wd_timer_valid) + mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000); + } + dhd_os_sdunlock(&dhd->pub); + dhd_os_wake_unlock(&dhd->pub); + } else { + break; + } + } + + complete_and_exit(&dhd->watchdog_exited, 0); +} + +static void +dhd_watchdog(ulong data) +{ + dhd_info_t *dhd = (dhd_info_t *)data; + + dhd_os_wake_lock(&dhd->pub); + if (dhd->pub.dongle_reset) { + dhd_os_wake_unlock(&dhd->pub); + return; + } + + if (dhd->watchdog_pid >= 0) { + up(&dhd->watchdog_sem); + return; + } + + dhd_os_sdlock(&dhd->pub); + /* Call the bus module watchdog */ + dhd_bus_watchdog(&dhd->pub); + + /* Count the tick for reference */ + dhd->pub.tickcnt++; + + /* Reschedule the watchdog */ + if (dhd->wd_timer_valid) + mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000); + dhd_os_sdunlock(&dhd->pub); + dhd_os_wake_unlock(&dhd->pub); +} + +static int +dhd_dpc_thread(void *data) +{ + dhd_info_t *dhd = (dhd_info_t *)data; + + /* This thread doesn't need any user-level access, + * so get rid of all our resources + */ +#ifdef DHD_SCHED + if (dhd_dpc_prio > 0) + { + struct sched_param param; + param.sched_priority = (dhd_dpc_prio < MAX_RT_PRIO)?dhd_dpc_prio:(MAX_RT_PRIO-1); + setScheduler(current, SCHED_FIFO, ¶m); + } +#endif /* DHD_SCHED */ + + DAEMONIZE("dhd_dpc"); + + /* Run until signal received */ + while (1) { + if (down_interruptible(&dhd->dpc_sem) == 0) { + /* Call bus dpc unless it indicated down (then clean stop) */ + if (dhd->pub.busstate != DHD_BUS_DOWN) { + if (dhd_bus_dpc(dhd->pub.bus)) { + up(&dhd->dpc_sem); + } + else { + dhd_os_wake_unlock(&dhd->pub); + } + } else { + if (dhd->pub.up) + dhd_bus_stop(dhd->pub.bus, TRUE); + dhd_os_wake_unlock(&dhd->pub); + } + } + else + break; + } + + complete_and_exit(&dhd->dpc_exited, 0); +} + +static void +dhd_dpc(ulong data) +{ + dhd_info_t *dhd; + + dhd = (dhd_info_t *)data; + + /* Call bus dpc unless it indicated down (then clean stop) */ + if (dhd->pub.busstate != DHD_BUS_DOWN) { + if (dhd_bus_dpc(dhd->pub.bus)) + tasklet_schedule(&dhd->tasklet); + } else { + dhd_bus_stop(dhd->pub.bus, TRUE); + } +} + +void +dhd_sched_dpc(dhd_pub_t *dhdp) +{ + dhd_info_t *dhd = (dhd_info_t *)dhdp->info; + + dhd_os_wake_lock(dhdp); + if (dhd->dpc_pid >= 0) { + up(&dhd->dpc_sem); + return; + } + + tasklet_schedule(&dhd->tasklet); +} + +#ifdef TOE +/* Retrieve current toe component enables, which are kept as a bitmap in toe_ol iovar */ +static int +dhd_toe_get(dhd_info_t *dhd, int ifidx, uint32 *toe_ol) +{ + wl_ioctl_t ioc; + char buf[32]; + int ret; + + memset(&ioc, 0, sizeof(ioc)); + + ioc.cmd = WLC_GET_VAR; + ioc.buf = buf; + ioc.len = (uint)sizeof(buf); + ioc.set = FALSE; + + strcpy(buf, "toe_ol"); + if ((ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) { + /* Check for older dongle image that doesn't support toe_ol */ + if (ret == -EIO) { + DHD_ERROR(("%s: toe not supported by device\n", + dhd_ifname(&dhd->pub, ifidx))); + return -EOPNOTSUPP; + } + + DHD_INFO(("%s: could not get toe_ol: ret=%d\n", dhd_ifname(&dhd->pub, ifidx), ret)); + return ret; + } + + memcpy(toe_ol, buf, sizeof(uint32)); + return 0; +} + +/* Set current toe component enables in toe_ol iovar, and set toe global enable iovar */ +static int +dhd_toe_set(dhd_info_t *dhd, int ifidx, uint32 toe_ol) +{ + wl_ioctl_t ioc; + char buf[32]; + int toe, ret; + + memset(&ioc, 0, sizeof(ioc)); + + ioc.cmd = WLC_SET_VAR; + ioc.buf = buf; + ioc.len = (uint)sizeof(buf); + ioc.set = TRUE; + + /* Set toe_ol as requested */ + + strcpy(buf, "toe_ol"); + memcpy(&buf[sizeof("toe_ol")], &toe_ol, sizeof(uint32)); + + if ((ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) { + DHD_ERROR(("%s: could not set toe_ol: ret=%d\n", + dhd_ifname(&dhd->pub, ifidx), ret)); + return ret; + } + + /* Enable toe globally only if any components are enabled. */ + + toe = (toe_ol != 0); + + strcpy(buf, "toe"); + memcpy(&buf[sizeof("toe")], &toe, sizeof(uint32)); + + if ((ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) { + DHD_ERROR(("%s: could not set toe: ret=%d\n", dhd_ifname(&dhd->pub, ifidx), ret)); + return ret; + } + + return 0; +} +#endif /* TOE */ + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24) +static void dhd_ethtool_get_drvinfo(struct net_device *net, + struct ethtool_drvinfo *info) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net); + + sprintf(info->driver, "wl"); + sprintf(info->version, "%lu", dhd->pub.drv_version); +} + +struct ethtool_ops dhd_ethtool_ops = { + .get_drvinfo = dhd_ethtool_get_drvinfo +}; +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24) */ + + +#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2) +static int +dhd_ethtool(dhd_info_t *dhd, void *uaddr) +{ + struct ethtool_drvinfo info; + char drvname[sizeof(info.driver)]; + uint32 cmd; +#ifdef TOE + struct ethtool_value edata; + uint32 toe_cmpnt, csum_dir; + int ret; +#endif + + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + /* all ethtool calls start with a cmd word */ + if (copy_from_user(&cmd, uaddr, sizeof (uint32))) + return -EFAULT; + + switch (cmd) { + case ETHTOOL_GDRVINFO: + /* Copy out any request driver name */ + if (copy_from_user(&info, uaddr, sizeof(info))) + return -EFAULT; + strncpy(drvname, info.driver, sizeof(info.driver)); + drvname[sizeof(info.driver)-1] = '\0'; + + /* clear struct for return */ + memset(&info, 0, sizeof(info)); + info.cmd = cmd; + + /* if dhd requested, identify ourselves */ + if (strcmp(drvname, "?dhd") == 0) { + sprintf(info.driver, "dhd"); + strcpy(info.version, EPI_VERSION_STR); + } + + /* otherwise, require dongle to be up */ + else if (!dhd->pub.up) { + DHD_ERROR(("%s: dongle is not up\n", __FUNCTION__)); + return -ENODEV; + } + + /* finally, report dongle driver type */ + else if (dhd->pub.iswl) + sprintf(info.driver, "wl"); + else + sprintf(info.driver, "xx"); + + sprintf(info.version, "%lu", dhd->pub.drv_version); + if (copy_to_user(uaddr, &info, sizeof(info))) + return -EFAULT; + DHD_CTL(("%s: given %*s, returning %s\n", __FUNCTION__, + (int)sizeof(drvname), drvname, info.driver)); + break; + +#ifdef TOE + /* Get toe offload components from dongle */ + case ETHTOOL_GRXCSUM: + case ETHTOOL_GTXCSUM: + if ((ret = dhd_toe_get(dhd, 0, &toe_cmpnt)) < 0) + return ret; + + csum_dir = (cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL; + + edata.cmd = cmd; + edata.data = (toe_cmpnt & csum_dir) ? 1 : 0; + + if (copy_to_user(uaddr, &edata, sizeof(edata))) + return -EFAULT; + break; + + /* Set toe offload components in dongle */ + case ETHTOOL_SRXCSUM: + case ETHTOOL_STXCSUM: + if (copy_from_user(&edata, uaddr, sizeof(edata))) + return -EFAULT; + + /* Read the current settings, update and write back */ + if ((ret = dhd_toe_get(dhd, 0, &toe_cmpnt)) < 0) + return ret; + + csum_dir = (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL; + + if (edata.data != 0) + toe_cmpnt |= csum_dir; + else + toe_cmpnt &= ~csum_dir; + + if ((ret = dhd_toe_set(dhd, 0, toe_cmpnt)) < 0) + return ret; + + /* If setting TX checksum mode, tell Linux the new mode */ + if (cmd == ETHTOOL_STXCSUM) { + if (edata.data) + dhd->iflist[0]->net->features |= NETIF_F_IP_CSUM; + else + dhd->iflist[0]->net->features &= ~NETIF_F_IP_CSUM; + } + + break; +#endif /* TOE */ + + default: + return -EOPNOTSUPP; + } + + return 0; +} +#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2) */ + +static int +dhd_ioctl_entry(struct net_device *net, struct ifreq *ifr, int cmd) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net); + dhd_ioctl_t ioc; + int bcmerror = 0; + int buflen = 0; + void *buf = NULL; + uint driver = 0; + int ifidx; + bool is_set_key_cmd; + int ret; + + dhd_os_wake_lock(&dhd->pub); + + /* send to dongle only if we are not waiting for reload already */ + if (dhd->pub.hang_was_sent) { + DHD_ERROR(("%s: HANG was sent up earlier\n", __FUNCTION__)); + dhd_os_wake_lock_timeout_enable(&dhd->pub); + dhd_os_wake_unlock(&dhd->pub); + return OSL_ERROR(BCME_DONGLE_DOWN); + } + + ifidx = dhd_net2idx(dhd, net); + DHD_TRACE(("%s: ifidx %d, cmd 0x%04x\n", __FUNCTION__, ifidx, cmd)); + + if (ifidx == DHD_BAD_IF) { + dhd_os_wake_unlock(&dhd->pub); + return -1; + } + +#if defined(CONFIG_WIRELESS_EXT) + /* linux wireless extensions */ + if ((cmd >= SIOCIWFIRST) && (cmd <= SIOCIWLAST)) { + /* may recurse, do NOT lock */ + ret = wl_iw_ioctl(net, ifr, cmd); + dhd_os_wake_unlock(&dhd->pub); + return ret; + } +#endif /* defined(CONFIG_WIRELESS_EXT) */ + +#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2) + if (cmd == SIOCETHTOOL) { + ret = dhd_ethtool(dhd, (void*)ifr->ifr_data); + dhd_os_wake_unlock(&dhd->pub); + return ret; + } +#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2) */ + + if (cmd != SIOCDEVPRIVATE) { + dhd_os_wake_unlock(&dhd->pub); + return -EOPNOTSUPP; + } + + memset(&ioc, 0, sizeof(ioc)); + + /* Copy the ioc control structure part of ioctl request */ + if (copy_from_user(&ioc, ifr->ifr_data, sizeof(wl_ioctl_t))) { + bcmerror = -BCME_BADADDR; + goto done; + } + + /* Copy out any buffer passed */ + if (ioc.buf) { + buflen = MIN(ioc.len, DHD_IOCTL_MAXLEN); + /* optimization for direct ioctl calls from kernel */ + /* + if (segment_eq(get_fs(), KERNEL_DS)) { + buf = ioc.buf; + } else { + */ + { + if (!(buf = (char*)MALLOC(dhd->pub.osh, buflen))) { + bcmerror = -BCME_NOMEM; + goto done; + } + if (copy_from_user(buf, ioc.buf, buflen)) { + bcmerror = -BCME_BADADDR; + goto done; + } + } + } + + /* To differentiate between wl and dhd read 4 more byes */ + if ((copy_from_user(&driver, (char *)ifr->ifr_data + sizeof(wl_ioctl_t), + sizeof(uint)) != 0)) { + bcmerror = -BCME_BADADDR; + goto done; + } + + if (!capable(CAP_NET_ADMIN)) { + bcmerror = -BCME_EPERM; + goto done; + } + + /* check for local dhd ioctl and handle it */ + if (driver == DHD_IOCTL_MAGIC) { + bcmerror = dhd_ioctl((void *)&dhd->pub, &ioc, buf, buflen); + if (bcmerror) + dhd->pub.bcmerror = bcmerror; + goto done; + } + + /* send to dongle (must be up, and wl) */ + if (dhd->pub.busstate != DHD_BUS_DATA) { + DHD_ERROR(("%s DONGLE_DOWN\n", __FUNCTION__)); + bcmerror = BCME_DONGLE_DOWN; + goto done; + } + + if (!dhd->pub.iswl) { + bcmerror = BCME_DONGLE_DOWN; + goto done; + } + + /* Intercept WLC_SET_KEY IOCTL - serialize M4 send and set key IOCTL to + * prevent M4 encryption. + */ + is_set_key_cmd = ((ioc.cmd == WLC_SET_KEY) || + ((ioc.cmd == WLC_SET_VAR) && + !(strncmp("wsec_key", ioc.buf, 9))) || + ((ioc.cmd == WLC_SET_VAR) && + !(strncmp("bsscfg:wsec_key", ioc.buf, 15)))); + if (is_set_key_cmd) { + dhd_wait_pend8021x(net); + } + + bcmerror = dhd_prot_ioctl(&dhd->pub, ifidx, (wl_ioctl_t *)&ioc, buf, buflen); + +done: + if ((bcmerror == -ETIMEDOUT) || ((dhd->pub.busstate == DHD_BUS_DOWN) && + (!dhd->pub.dongle_reset))) { + DHD_ERROR(("%s: Event HANG send up\n", __FUNCTION__)); + net_os_send_hang_message(net); + } + + if (!bcmerror && buf && ioc.buf) { + if (copy_to_user(ioc.buf, buf, buflen)) + bcmerror = -EFAULT; + } + + if (buf) + MFREE(dhd->pub.osh, buf, buflen); + + dhd_os_wake_unlock(&dhd->pub); + + return OSL_ERROR(bcmerror); +} + +static int +dhd_stop(struct net_device *net) +{ +#if !defined(IGNORE_ETH0_DOWN) + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net); + + DHD_TRACE(("%s: Enter %s\n", __FUNCTION__, net->name)); + if (dhd->pub.up == 0) { + return 0; + } + + /* Set state and stop OS transmissions */ + dhd->pub.up = 0; + netif_stop_queue(net); +#else + DHD_ERROR(("BYPASS %s:due to BRCM compilation : under investigation ...\n", __FUNCTION__)); +#endif /* !defined(IGNORE_ETH0_DOWN) */ + dhd->pub.hang_was_sent = 0; + OLD_MOD_DEC_USE_COUNT; + return 0; +} + +static int +dhd_open(struct net_device *net) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net); +#ifdef TOE + uint32 toe_ol; +#endif + int ifidx; + + /* Force start if ifconfig_up gets called before START command */ + wl_control_wl_start(net); + + ifidx = dhd_net2idx(dhd, net); + DHD_TRACE(("%s: ifidx %d\n", __FUNCTION__, ifidx)); + + if (ifidx == DHD_BAD_IF) + return -1; + + if ((dhd->iflist[ifidx]) && (dhd->iflist[ifidx]->state == WLC_E_IF_DEL)) { + DHD_ERROR(("%s: Error: called when IF already deleted\n", __FUNCTION__)); + return -1; + } + + if (ifidx == 0) { /* do it only for primary eth0 */ + + atomic_set(&dhd->pend_8021x_cnt, 0); + + memcpy(net->dev_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN); + +#ifdef TOE + /* Get current TOE mode from dongle */ + if (dhd_toe_get(dhd, ifidx, &toe_ol) >= 0 && (toe_ol & TOE_TX_CSUM_OL) != 0) + dhd->iflist[ifidx]->net->features |= NETIF_F_IP_CSUM; + else + dhd->iflist[ifidx]->net->features &= ~NETIF_F_IP_CSUM; +#endif + } + /* Allow transmit calls */ + netif_start_queue(net); + dhd->pub.up = 1; + + OLD_MOD_INC_USE_COUNT; + return 0; +} + +osl_t * +dhd_osl_attach(void *pdev, uint bustype) +{ + return osl_attach(pdev, bustype, TRUE); +} + +void +dhd_osl_detach(osl_t *osh) +{ + if (MALLOCED(osh)) { + DHD_ERROR(("%s: MEMORY LEAK %d bytes\n", __FUNCTION__, MALLOCED(osh))); + } + osl_detach(osh); +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && 1 + up(&dhd_registration_sem); +#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */ +} + +int +dhd_add_if(dhd_info_t *dhd, int ifidx, void *handle, char *name, + uint8 *mac_addr, uint32 flags, uint8 bssidx) +{ + dhd_if_t *ifp; + + DHD_TRACE(("%s: idx %d, handle->%p\n", __FUNCTION__, ifidx, handle)); + + ASSERT(dhd && (ifidx < DHD_MAX_IFS)); + + ifp = dhd->iflist[ifidx]; + if (!ifp && !(ifp = MALLOC(dhd->pub.osh, sizeof(dhd_if_t)))) { + DHD_ERROR(("%s: OOM - dhd_if_t\n", __FUNCTION__)); + return -ENOMEM; + } + + memset(ifp, 0, sizeof(dhd_if_t)); + ifp->info = dhd; + dhd->iflist[ifidx] = ifp; + strncpy(ifp->name, name, IFNAMSIZ); + ifp->name[IFNAMSIZ] = '\0'; + if (mac_addr != NULL) + memcpy(&ifp->mac_addr, mac_addr, ETHER_ADDR_LEN); + + if (handle == NULL) { + ifp->state = WLC_E_IF_ADD; + ifp->idx = ifidx; + ASSERT(dhd->sysioc_pid >= 0); + up(&dhd->sysioc_sem); + } else + ifp->net = (struct net_device *)handle; + + return 0; +} + +void +dhd_del_if(dhd_info_t *dhd, int ifidx) +{ + dhd_if_t *ifp; + + DHD_TRACE(("%s: idx %d\n", __FUNCTION__, ifidx)); + + ASSERT(dhd && ifidx && (ifidx < DHD_MAX_IFS)); + ifp = dhd->iflist[ifidx]; + if (!ifp) { + DHD_ERROR(("%s: Null interface\n", __FUNCTION__)); + return; + } + + ifp->state = WLC_E_IF_DEL; + ifp->idx = ifidx; + ASSERT(dhd->sysioc_pid >= 0); + up(&dhd->sysioc_sem); +} + + +dhd_pub_t * +dhd_attach(osl_t *osh, struct dhd_bus *bus, uint bus_hdrlen) +{ + dhd_info_t *dhd = NULL; + struct net_device *net; + + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + /* updates firmware nvram path if it was provided as module paramters */ + if ((firmware_path != NULL) && (firmware_path[0] != '\0')) + strcpy(fw_path, firmware_path); + if ((nvram_path != NULL) && (nvram_path[0] != '\0')) + strcpy(nv_path, nvram_path); + + /* Allocate etherdev, including space for private structure */ + if (!(net = alloc_etherdev(sizeof(dhd)))) { + DHD_ERROR(("%s: OOM - alloc_etherdev\n", __FUNCTION__)); + goto fail; + } + + /* Allocate primary dhd_info */ + if (!(dhd = MALLOC(osh, sizeof(dhd_info_t)))) { + DHD_ERROR(("%s: OOM - alloc dhd_info\n", __FUNCTION__)); + goto fail; + } + + memset(dhd, 0, sizeof(dhd_info_t)); + + /* + * Save the dhd_info into the priv + */ + memcpy(netdev_priv(net), &dhd, sizeof(dhd)); + dhd->pub.osh = osh; + + /* Set network interface name if it was provided as module parameter */ + if (iface_name[0]) { + int len; + char ch; + strncpy(net->name, iface_name, IFNAMSIZ); + net->name[IFNAMSIZ - 1] = 0; + len = strlen(net->name); + ch = net->name[len - 1]; + if ((ch > '9' || ch < '0') && (len < IFNAMSIZ - 2)) + strcat(net->name, "%d"); + } + + if (dhd_add_if(dhd, 0, (void *)net, net->name, NULL, 0, 0) == DHD_BAD_IF) + goto fail; + +#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 31)) + net->open = NULL; +#else + net->netdev_ops = NULL; +#endif + + mutex_init(&dhd->proto_sem); + /* Initialize other structure content */ + init_waitqueue_head(&dhd->ioctl_resp_wait); + init_waitqueue_head(&dhd->ctrl_wait); + + /* Initialize the spinlocks */ + spin_lock_init(&dhd->sdlock); + spin_lock_init(&dhd->txqlock); + spin_lock_init(&dhd->dhd_lock); + + /* Initialize Wakelock stuff */ + spin_lock_init(&dhd->wl_lock); + dhd->wl_count = 0; + dhd->wl_packet = 0; +#ifdef CONFIG_HAS_WAKELOCK + wake_lock_init(&dhd->wl_wifi, WAKE_LOCK_SUSPEND, "wlan_wake"); + wake_lock_init(&dhd->wl_rxwake, WAKE_LOCK_SUSPEND, "wlan_rx_wake"); +#endif +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) + mutex_init(&dhd->wl_start_lock); +#endif + /* Link to info module */ + dhd->pub.info = dhd; + + /* Link to bus module */ + dhd->pub.bus = bus; + dhd->pub.hdrlen = bus_hdrlen; + + /* Attach and link in the protocol */ + if (dhd_prot_attach(&dhd->pub) != 0) { + DHD_ERROR(("dhd_prot_attach failed\n")); + goto fail; + } +#if defined(CONFIG_WIRELESS_EXT) + /* Attach and link in the iw */ + if (wl_iw_attach(net, (void *)&dhd->pub) != 0) { + DHD_ERROR(("wl_iw_attach failed\n")); + goto fail; + } +#endif /* defined(CONFIG_WIRELESS_EXT) */ + + /* Set up the watchdog timer */ + init_timer(&dhd->timer); + dhd->timer.data = (ulong)dhd; + dhd->timer.function = dhd_watchdog; + + /* Initialize thread based operation and lock */ + mutex_init(&dhd->sdsem); + if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0)) { + dhd->threads_only = TRUE; + } + else { + dhd->threads_only = FALSE; + } + + if (dhd_dpc_prio >= 0) { + /* Initialize watchdog thread */ + sema_init(&dhd->watchdog_sem, 0); + init_completion(&dhd->watchdog_exited); + dhd->watchdog_pid = kernel_thread(dhd_watchdog_thread, dhd, 0); + } else { + dhd->watchdog_pid = -1; + } + + /* Set up the bottom half handler */ + if (dhd_dpc_prio >= 0) { + /* Initialize DPC thread */ + sema_init(&dhd->dpc_sem, 0); + init_completion(&dhd->dpc_exited); + dhd->dpc_pid = kernel_thread(dhd_dpc_thread, dhd, 0); + } else { + tasklet_init(&dhd->tasklet, dhd_dpc, (ulong)dhd); + dhd->dpc_pid = -1; + } + + if (dhd_sysioc) { + sema_init(&dhd->sysioc_sem, 0); + init_completion(&dhd->sysioc_exited); + dhd->sysioc_pid = kernel_thread(_dhd_sysioc_thread, dhd, 0); + } else { + dhd->sysioc_pid = -1; + } + + /* + * Save the dhd_info into the priv + */ + memcpy(netdev_priv(net), &dhd, sizeof(dhd)); + +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) + register_pm_notifier(&dhd_sleep_pm_notifier); +#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) */ + +#ifdef CONFIG_HAS_EARLYSUSPEND + dhd->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 20; + dhd->early_suspend.suspend = dhd_early_suspend; + dhd->early_suspend.resume = dhd_late_resume; + register_early_suspend(&dhd->early_suspend); +#endif + + register_inetaddr_notifier(&dhd_notifier); + + return &dhd->pub; + +fail: + if (net) + free_netdev(net); + if (dhd) + dhd_detach(&dhd->pub); + + return NULL; +} + + +int +dhd_bus_start(dhd_pub_t *dhdp) +{ + int ret = -1; + dhd_info_t *dhd = (dhd_info_t*)dhdp->info; +#ifdef EMBEDDED_PLATFORM + char iovbuf[WL_EVENTING_MASK_LEN + 12]; /* Room for "event_msgs" + '\0' + bitvec */ +#endif /* EMBEDDED_PLATFORM */ + + ASSERT(dhd); + + DHD_TRACE(("%s: \n", __FUNCTION__)); + + dhd_os_sdlock(dhdp); + + /* try to download image and nvram to the dongle */ + if (dhd->pub.busstate == DHD_BUS_DOWN) { + if (!(dhd_bus_download_firmware(dhd->pub.bus, dhd->pub.osh, + fw_path, nv_path))) { + DHD_ERROR(("%s: dhdsdio_probe_download failed. firmware = %s nvram = %s\n", + __FUNCTION__, fw_path, nv_path)); + dhd_os_sdunlock(dhdp); + return -1; + } + } + + /* Start the watchdog timer */ + dhd->pub.tickcnt = 0; + dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms); + + /* Bring up the bus */ + if ((ret = dhd_bus_init(&dhd->pub, FALSE)) != 0) { + DHD_ERROR(("%s, dhd_bus_init failed %d\n", __FUNCTION__, ret)); + dhd_os_sdunlock(dhdp); + return ret; + } +#if defined(OOB_INTR_ONLY) + /* Host registration for OOB interrupt */ + if (bcmsdh_register_oob_intr(dhdp)) { + dhd->wd_timer_valid = FALSE; + del_timer_sync(&dhd->timer); + DHD_ERROR(("%s Host failed to resgister for OOB\n", __FUNCTION__)); + dhd_os_sdunlock(dhdp); + return -ENODEV; + } + + /* Enable oob at firmware */ + dhd_enable_oob_intr(dhd->pub.bus, TRUE); +#endif /* defined(OOB_INTR_ONLY) */ + + /* If bus is not ready, can't come up */ + if (dhd->pub.busstate != DHD_BUS_DATA) { + dhd->wd_timer_valid = FALSE; + del_timer_sync(&dhd->timer); + DHD_ERROR(("%s failed bus is not ready\n", __FUNCTION__)); + dhd_os_sdunlock(dhdp); + return -ENODEV; + } + + dhd_os_sdunlock(dhdp); + +#ifdef EMBEDDED_PLATFORM + bcm_mkiovar("event_msgs", dhdp->eventmask, WL_EVENTING_MASK_LEN, iovbuf, sizeof(iovbuf)); + dhdcdc_query_ioctl(dhdp, 0, WLC_GET_VAR, iovbuf, sizeof(iovbuf)); + bcopy(iovbuf, dhdp->eventmask, WL_EVENTING_MASK_LEN); + + setbit(dhdp->eventmask, WLC_E_SET_SSID); + setbit(dhdp->eventmask, WLC_E_PRUNE); + setbit(dhdp->eventmask, WLC_E_AUTH); + setbit(dhdp->eventmask, WLC_E_REASSOC); + setbit(dhdp->eventmask, WLC_E_REASSOC_IND); + setbit(dhdp->eventmask, WLC_E_DEAUTH_IND); + setbit(dhdp->eventmask, WLC_E_DISASSOC_IND); + setbit(dhdp->eventmask, WLC_E_DISASSOC); + setbit(dhdp->eventmask, WLC_E_JOIN); + setbit(dhdp->eventmask, WLC_E_ASSOC_IND); + setbit(dhdp->eventmask, WLC_E_PSK_SUP); + setbit(dhdp->eventmask, WLC_E_LINK); + setbit(dhdp->eventmask, WLC_E_NDIS_LINK); + setbit(dhdp->eventmask, WLC_E_MIC_ERROR); + setbit(dhdp->eventmask, WLC_E_PMKID_CACHE); + setbit(dhdp->eventmask, WLC_E_TXFAIL); + setbit(dhdp->eventmask, WLC_E_JOIN_START); + setbit(dhdp->eventmask, WLC_E_SCAN_COMPLETE); + setbit(dhdp->eventmask, WLC_E_RELOAD); +#ifdef PNO_SUPPORT + setbit(dhdp->eventmask, WLC_E_PFN_NET_FOUND); +#endif /* PNO_SUPPORT */ + +/* enable dongle roaming event */ + setbit(dhdp->eventmask, WLC_E_ROAM); + + dhdp->pktfilter_count = 4; + /* Setup filter to allow only unicast */ + dhdp->pktfilter[0] = "100 0 0 0 0x01 0x00"; + dhdp->pktfilter[1] = NULL; + dhdp->pktfilter[2] = NULL; + dhdp->pktfilter[3] = NULL; +#endif /* EMBEDDED_PLATFORM */ + + /* Bus is ready, do any protocol initialization */ + if ((ret = dhd_prot_init(&dhd->pub)) < 0) + return ret; + + return 0; +} + +int +dhd_iovar(dhd_pub_t *pub, int ifidx, char *name, char *cmd_buf, uint cmd_len, int set) +{ + char buf[strlen(name) + 1 + cmd_len]; + int len = sizeof(buf); + wl_ioctl_t ioc; + int ret; + + len = bcm_mkiovar(name, cmd_buf, cmd_len, buf, len); + + memset(&ioc, 0, sizeof(ioc)); + + ioc.cmd = set? WLC_SET_VAR : WLC_GET_VAR; + ioc.buf = buf; + ioc.len = len; + ioc.set = set; + + ret = dhd_prot_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len); + if (!set && ret >= 0) + memcpy(cmd_buf, buf, cmd_len); + + return ret; +} + +#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 31)) +static struct net_device_ops dhd_ops_pri = { + .ndo_open = dhd_open, + .ndo_stop = dhd_stop, + .ndo_get_stats = dhd_get_stats, + .ndo_do_ioctl = dhd_ioctl_entry, + .ndo_start_xmit = dhd_start_xmit, + .ndo_set_mac_address = dhd_set_mac_address, + .ndo_set_multicast_list = dhd_set_multicast_list, +}; + +static struct net_device_ops dhd_ops_virt = { + .ndo_get_stats = dhd_get_stats, + .ndo_do_ioctl = dhd_ioctl_entry, + .ndo_start_xmit = dhd_start_xmit, + .ndo_set_mac_address = dhd_set_mac_address, + .ndo_set_multicast_list = dhd_set_multicast_list, +}; +#endif + +static int dhd_device_event(struct notifier_block *this, unsigned long event, + void *ptr) +{ + struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; + dhd_info_t *dhd; + dhd_pub_t *dhd_pub; + + if (!ifa) + return NOTIFY_DONE; + + dhd = *(dhd_info_t **)netdev_priv(ifa->ifa_dev->dev); + dhd_pub = &dhd->pub; + +#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 31)) + if (ifa->ifa_dev->dev->netdev_ops == &dhd_ops_pri) { +#else + if (ifa->ifa_dev->dev->open == &dhd_open) { +#endif + switch (event) { + case NETDEV_UP: + DHD_TRACE(("%s: [%s] Up IP: 0x%x\n", + __FUNCTION__, ifa->ifa_label, ifa->ifa_address)); + + dhd_arp_cleanup(dhd_pub); + break; + + case NETDEV_DOWN: + DHD_TRACE(("%s: [%s] Down IP: 0x%x\n", + __FUNCTION__, ifa->ifa_label, ifa->ifa_address)); + + dhd_arp_cleanup(dhd_pub); + break; + + default: + DHD_TRACE(("%s: [%s] Event: %lu\n", + __FUNCTION__, ifa->ifa_label, event)); + break; + } + } + return NOTIFY_DONE; +} + +int +dhd_net_attach(dhd_pub_t *dhdp, int ifidx) +{ + dhd_info_t *dhd = (dhd_info_t *)dhdp->info; + struct net_device *net; + uint8 temp_addr[ETHER_ADDR_LEN] = { 0x00, 0x90, 0x4c, 0x11, 0x22, 0x33 }; + + DHD_TRACE(("%s: ifidx %d\n", __FUNCTION__, ifidx)); + + ASSERT(dhd && dhd->iflist[ifidx]); + net = dhd->iflist[ifidx]->net; + + ASSERT(net); +#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 31)) + ASSERT(!net->open); + net->get_stats = dhd_get_stats; + net->do_ioctl = dhd_ioctl_entry; + net->hard_start_xmit = dhd_start_xmit; + net->set_mac_address = dhd_set_mac_address; + net->set_multicast_list = dhd_set_multicast_list; + net->open = net->stop = NULL; +#else + ASSERT(!net->netdev_ops); + net->netdev_ops = &dhd_ops_virt; +#endif + +#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 31)) + net->open = dhd_open; + net->stop = dhd_stop; +#else + net->netdev_ops = &dhd_ops_pri; +#endif + + /* + * We have to use the primary MAC for virtual interfaces + */ + if (ifidx != 0) { + /* for virtual interfaces use the primary MAC */ + memcpy(temp_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN); + } + + if (ifidx == 1) { + DHD_TRACE(("%s ACCESS POINT MAC: \n", __FUNCTION__)); + /* ACCESSPOINT INTERFACE CASE */ + temp_addr[0] |= 0x02; /* set bit 2 , - Locally Administered address */ + } + net->hard_header_len = ETH_HLEN + dhd->pub.hdrlen; +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24) + net->ethtool_ops = &dhd_ethtool_ops; +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24) */ + +#if defined(CONFIG_WIRELESS_EXT) +#if WIRELESS_EXT < 19 + net->get_wireless_stats = dhd_get_wireless_stats; +#endif /* WIRELESS_EXT < 19 */ +#if WIRELESS_EXT > 12 + net->wireless_handlers = (struct iw_handler_def *)&wl_iw_handler_def; +#endif /* WIRELESS_EXT > 12 */ +#endif /* defined(CONFIG_WIRELESS_EXT) */ + + dhd->pub.rxsz = net->mtu + net->hard_header_len + dhd->pub.hdrlen; + + memcpy(net->dev_addr, temp_addr, ETHER_ADDR_LEN); + + if (register_netdev(net) != 0) { + DHD_ERROR(("%s: couldn't register the net device\n", __FUNCTION__)); + goto fail; + } + + printf("%s: Broadcom Dongle Host Driver mac=%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", net->name, + dhd->pub.mac.octet[0], dhd->pub.mac.octet[1], dhd->pub.mac.octet[2], + dhd->pub.mac.octet[3], dhd->pub.mac.octet[4], dhd->pub.mac.octet[5]); + + +#if defined(CONFIG_WIRELESS_EXT) +#if defined(CONFIG_FIRST_SCAN) +#ifdef SOFTAP + if (ifidx == 0) + /* Don't call for SOFTAP Interface in SOFTAP MODE */ + wl_iw_iscan_set_scan_broadcast_prep(net, 1); +#else + wl_iw_iscan_set_scan_broadcast_prep(net, 1); +#endif /* SOFTAP */ +#endif /* CONFIG_FIRST_SCAN */ +#endif /* CONFIG_WIRELESS_EXT */ + +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) + up(&dhd_registration_sem); +#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */ + return 0; + +fail: +#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 31)) + net->open = NULL; +#else + net->netdev_ops = NULL; +#endif + return BCME_ERROR; +} + +void +dhd_bus_detach(dhd_pub_t *dhdp) +{ + dhd_info_t *dhd; + + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + if (dhdp) { + dhd = (dhd_info_t *)dhdp->info; + if (dhd) { + /* Stop the protocol module */ + dhd_prot_stop(&dhd->pub); + + /* Stop the bus module */ + dhd_bus_stop(dhd->pub.bus, TRUE); +#if defined(OOB_INTR_ONLY) + bcmsdh_unregister_oob_intr(); +#endif /* defined(OOB_INTR_ONLY) */ + + /* Clear the watchdog timer */ + dhd->wd_timer_valid = FALSE; + del_timer_sync(&dhd->timer); + } + } +} + +void +dhd_detach(dhd_pub_t *dhdp) +{ + dhd_info_t *dhd; + + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + if (dhdp) { + dhd = (dhd_info_t *)dhdp->info; + if (dhd) { + dhd_if_t *ifp; + int i; + + unregister_inetaddr_notifier(&dhd_notifier); + +#if defined(CONFIG_HAS_EARLYSUSPEND) + if (dhd->early_suspend.suspend) + unregister_early_suspend(&dhd->early_suspend); +#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */ +#if defined(CONFIG_WIRELESS_EXT) + /* Attach and link in the iw */ + wl_iw_detach(); +#endif + if (dhd->sysioc_pid >= 0) { + KILL_PROC(dhd->sysioc_pid, SIGTERM); + wait_for_completion(&dhd->sysioc_exited); + } + + for (i = 1; i < DHD_MAX_IFS; i++) + if (dhd->iflist[i]) { + dhd->iflist[i]->state = WLC_E_IF_DEL; + dhd->iflist[i]->idx = i; + dhd_op_if(dhd->iflist[i]); + } + + ifp = dhd->iflist[0]; + ASSERT(ifp); +#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 31)) + if (ifp->net->open) { +#else + if (ifp->net->netdev_ops == &dhd_ops_pri) { +#endif + dhd_stop(ifp->net); + unregister_netdev(ifp->net); + } + + if (dhd->watchdog_pid >= 0) + { + KILL_PROC(dhd->watchdog_pid, SIGTERM); + wait_for_completion(&dhd->watchdog_exited); + } + + if (dhd->dpc_pid >= 0) + { + KILL_PROC(dhd->dpc_pid, SIGTERM); + wait_for_completion(&dhd->dpc_exited); + } + else + tasklet_kill(&dhd->tasklet); + + dhd_bus_detach(dhdp); + + if (dhdp->prot) + dhd_prot_detach(dhdp); + +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) + unregister_pm_notifier(&dhd_sleep_pm_notifier); +#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) */ + free_netdev(ifp->net); +#ifdef CONFIG_HAS_WAKELOCK + wake_lock_destroy(&dhd->wl_wifi); + wake_lock_destroy(&dhd->wl_rxwake); +#endif + MFREE(dhd->pub.osh, ifp, sizeof(*ifp)); + MFREE(dhd->pub.osh, dhd, sizeof(*dhd)); + } + } +} + +static void __exit +dhd_module_cleanup(void) +{ + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + dhd_bus_unregister(); +#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) + wifi_del_dev(); +#endif + /* Call customer gpio to turn off power with WL_REG_ON signal */ + dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF); +} + +static int __init +dhd_module_init(void) +{ + int error; + + DHD_TRACE(("%s: Enter\n", __FUNCTION__)); + + /* Sanity check on the module parameters */ + do { + /* Both watchdog and DPC as tasklets are ok */ + if ((dhd_watchdog_prio < 0) && (dhd_dpc_prio < 0)) + break; + + /* If both watchdog and DPC are threads, TX must be deferred */ + if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0) && dhd_deferred_tx) + break; + + DHD_ERROR(("Invalid module parameters.\n")); + return -EINVAL; + } while (0); + + /* Call customer gpio to turn on power with WL_REG_ON signal */ + dhd_customer_gpio_wlan_ctrl(WLAN_POWER_ON); + +#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) + sema_init(&wifi_control_sem, 0); + + error = wifi_add_dev(); + if (error) { + DHD_ERROR(("%s: platform_driver_register failed\n", __FUNCTION__)); + goto fail_0; + } + + /* Waiting callback after platform_driver_register is done or exit with error */ + if (down_timeout(&wifi_control_sem, msecs_to_jiffies(5000)) != 0) { + error = -EINVAL; + DHD_ERROR(("%s: platform_driver_register timeout\n", __FUNCTION__)); + goto fail_1; + } +#endif /* #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */ + +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) + sema_init(&dhd_registration_sem, 0); +#endif + + error = dhd_bus_register(); + + if (!error) + printf("\n%s\n", dhd_version); + else { + DHD_ERROR(("%s: sdio_register_driver failed\n", __FUNCTION__)); + goto fail_1; + } +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) + /* + * Wait till MMC sdio_register_driver callback called and made driver attach. + * It's needed to make sync up exit from dhd insmod and + * Kernel MMC sdio device callback registration + */ + if (down_timeout(&dhd_registration_sem, msecs_to_jiffies(DHD_REGISTRATION_TIMEOUT)) != 0) { + error = -EINVAL; + DHD_ERROR(("%s: sdio_register_driver timeout\n", __FUNCTION__)); + goto fail_2; + } +#endif + return error; +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) +fail_2: + dhd_bus_unregister(); +#endif +fail_1: +#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) + wifi_del_dev(); +fail_0: +#endif /* defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */ + + /* Call customer gpio to turn off power with WL_REG_ON signal */ + dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF); + + return error; +} + +module_init(dhd_module_init); +module_exit(dhd_module_cleanup); + +/* + * OS specific functions required to implement DHD driver in OS independent way + */ +int +dhd_os_proto_block(dhd_pub_t *pub) +{ + dhd_info_t *dhd = (dhd_info_t *)(pub->info); + + if (dhd) { + mutex_lock(&dhd->proto_sem); + return 1; + } + + return 0; +} + +int +dhd_os_proto_unblock(dhd_pub_t *pub) +{ + dhd_info_t *dhd = (dhd_info_t *)(pub->info); + + if (dhd) { + mutex_unlock(&dhd->proto_sem); + return 1; + } + + return 0; +} + +unsigned int +dhd_os_get_ioctl_resp_timeout(void) +{ + return ((unsigned int)dhd_ioctl_timeout_msec); +} + +void +dhd_os_set_ioctl_resp_timeout(unsigned int timeout_msec) +{ + dhd_ioctl_timeout_msec = (int)timeout_msec; +} + +int +dhd_os_ioctl_resp_wait(dhd_pub_t *pub, uint *condition, bool *pending) +{ + dhd_info_t *dhd = (dhd_info_t *)(pub->info); + DECLARE_WAITQUEUE(wait, current); + int timeout = dhd_ioctl_timeout_msec; + + /* Convert timeout in millsecond to jiffies */ + /* timeout = timeout * HZ / 1000; */ + timeout = msecs_to_jiffies(timeout); + + /* Wait until control frame is available */ + add_wait_queue(&dhd->ioctl_resp_wait, &wait); + set_current_state(TASK_INTERRUPTIBLE); + smp_mb(); + while (!(*condition) && (!signal_pending(current) && timeout)) { + timeout = schedule_timeout(timeout); + smp_mb(); + } + + if (signal_pending(current)) + *pending = TRUE; + + set_current_state(TASK_RUNNING); + remove_wait_queue(&dhd->ioctl_resp_wait, &wait); + + return timeout; +} + +int +dhd_os_ioctl_resp_wake(dhd_pub_t *pub) +{ + dhd_info_t *dhd = (dhd_info_t *)(pub->info); + + if (waitqueue_active(&dhd->ioctl_resp_wait)) { + wake_up_interruptible(&dhd->ioctl_resp_wait); + } + + return 0; +} + +void +dhd_os_wd_timer(void *bus, uint wdtick) +{ + dhd_pub_t *pub = bus; + dhd_info_t *dhd = (dhd_info_t *)pub->info; + unsigned long flags; + int del_timer_flag = FALSE; + + flags = dhd_os_spin_lock(pub); + + /* don't start the wd until fw is loaded */ + if (pub->busstate != DHD_BUS_DOWN) { + if (wdtick) { + dhd_watchdog_ms = (uint)wdtick; + dhd->wd_timer_valid = TRUE; + /* Re arm the timer, at last watchdog period */ + mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000); + } else if (dhd->wd_timer_valid == TRUE) { + /* Totally stop the timer */ + dhd->wd_timer_valid = FALSE; + del_timer_flag = TRUE; + } + } + dhd_os_spin_unlock(pub, flags); + if (del_timer_flag) { + del_timer_sync(&dhd->timer); + } +} + +void * +dhd_os_open_image(char *filename) +{ + struct file *fp; + + fp = filp_open(filename, O_RDONLY, 0); + /* + * 2.6.11 (FC4) supports filp_open() but later revs don't? + * Alternative: + * fp = open_namei(AT_FDCWD, filename, O_RD, 0); + * ??? + */ + if (IS_ERR(fp)) + fp = NULL; + + return fp; +} + +int +dhd_os_get_image_block(char *buf, int len, void *image) +{ + struct file *fp = (struct file *)image; + int rdlen; + + if (!image) + return 0; + + rdlen = kernel_read(fp, fp->f_pos, buf, len); + if (rdlen > 0) + fp->f_pos += rdlen; + + return rdlen; +} + +void +dhd_os_close_image(void *image) +{ + if (image) + filp_close((struct file *)image, NULL); +} + + +void +dhd_os_sdlock(dhd_pub_t *pub) +{ + dhd_info_t *dhd; + + dhd = (dhd_info_t *)(pub->info); + + if (dhd->threads_only) + mutex_lock(&dhd->sdsem); + else + spin_lock_bh(&dhd->sdlock); +} + +void +dhd_os_sdunlock(dhd_pub_t *pub) +{ + dhd_info_t *dhd; + + dhd = (dhd_info_t *)(pub->info); + + if (dhd->threads_only) + mutex_unlock(&dhd->sdsem); + else + spin_unlock_bh(&dhd->sdlock); +} + +void +dhd_os_sdlock_txq(dhd_pub_t *pub) +{ + dhd_info_t *dhd; + + dhd = (dhd_info_t *)(pub->info); + spin_lock_bh(&dhd->txqlock); +} + +void +dhd_os_sdunlock_txq(dhd_pub_t *pub) +{ + dhd_info_t *dhd; + + dhd = (dhd_info_t *)(pub->info); + spin_unlock_bh(&dhd->txqlock); +} +void +dhd_os_sdlock_rxq(dhd_pub_t *pub) +{ +} +void +dhd_os_sdunlock_rxq(dhd_pub_t *pub) +{ +} + +void +dhd_os_sdtxlock(dhd_pub_t *pub) +{ + dhd_os_sdlock(pub); +} + +void +dhd_os_sdtxunlock(dhd_pub_t *pub) +{ + dhd_os_sdunlock(pub); +} + +#ifdef DHD_USE_STATIC_BUF +void * dhd_os_prealloc(int section, unsigned long size) +{ +#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) + void *alloc_ptr = NULL; + if (wifi_control_data && wifi_control_data->mem_prealloc) + { + alloc_ptr = wifi_control_data->mem_prealloc(section, size); + if (alloc_ptr) + { + DHD_INFO(("success alloc section %d\n", section)); + bzero(alloc_ptr, size); + return alloc_ptr; + } + } + + DHD_ERROR(("can't alloc section %d\n", section)); + return 0; +#else +return MALLOC(0, size); +#endif /* #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */ +} +#endif /* DHD_USE_STATIC_BUF */ +#if defined(CONFIG_WIRELESS_EXT) +struct iw_statistics * +dhd_get_wireless_stats(struct net_device *dev) +{ + int res = 0; + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + + res = wl_iw_get_wireless_stats(dev, &dhd->iw.wstats); + + if (res == 0) + return &dhd->iw.wstats; + else + return NULL; +} +#endif /* defined(CONFIG_WIRELESS_EXT) */ + +static int +dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata, + wl_event_msg_t *event, void **data) +{ + int bcmerror = 0; + + ASSERT(dhd != NULL); + + bcmerror = wl_host_event(dhd, ifidx, pktdata, event, data); + if (bcmerror != BCME_OK) + return (bcmerror); + +#if defined(CONFIG_WIRELESS_EXT) + ASSERT(dhd->iflist[*ifidx] != NULL); + + if (ntoh32(event->event_type) == WLC_E_IF) { + DHD_INFO(("<0> interface:%d OP:%d don't pass to wext," + "net_device might not be created yet\n", + *ifidx, ntoh32(event->event_type))); + return bcmerror; + } + + ASSERT(dhd->iflist[*ifidx]->net != NULL); + + if (dhd->iflist[*ifidx]->net) + wl_iw_event(dhd->iflist[*ifidx]->net, event, *data); +#endif /* defined(CONFIG_WIRELESS_EXT) */ + + return (bcmerror); +} + +/* send up locally generated event */ +void +dhd_sendup_event(dhd_pub_t *dhdp, wl_event_msg_t *event, void *data) +{ + switch (ntoh32(event->event_type)) { + default: + break; + } +} + +void dhd_wait_for_event(dhd_pub_t *dhd, bool *lockvar) +{ +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)) + struct dhd_info *dhdinfo = dhd->info; + dhd_os_sdunlock(dhd); + wait_event_interruptible_timeout(dhdinfo->ctrl_wait, (*lockvar == FALSE), HZ * 2); + dhd_os_sdlock(dhd); +#endif + return; +} + +void dhd_wait_event_wakeup(dhd_pub_t *dhd) +{ +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)) + struct dhd_info *dhdinfo = dhd->info; + if (waitqueue_active(&dhdinfo->ctrl_wait)) + wake_up_interruptible(&dhdinfo->ctrl_wait); +#endif + return; +} + +int +dhd_dev_reset(struct net_device *dev, uint8 flag) +{ + int ret; + + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + + ret = dhd_bus_devreset(&dhd->pub, flag); + if (ret) { + DHD_ERROR(("%s: dhd_bus_devreset: %d\n", __FUNCTION__, ret)); + return ret; + } + DHD_ERROR(("%s: WLAN %s DONE\n", __FUNCTION__, flag ? "OFF" : "ON")); + + return ret; +} + +int net_os_set_suspend_disable(struct net_device *dev, int val) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + int ret = 0; + + if (dhd) { + ret = dhd->pub.suspend_disable_flag; + dhd->pub.suspend_disable_flag = val; + } + return ret; +} + +int net_os_set_suspend(struct net_device *dev, int val) +{ + int ret = 0; +#if defined(CONFIG_HAS_EARLYSUSPEND) + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + + if (dhd) { + dhd_os_proto_block(&dhd->pub); + ret = dhd_set_suspend(val, &dhd->pub); + dhd_os_proto_unblock(&dhd->pub); + } +#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */ + return ret; +} + +int net_os_set_dtim_skip(struct net_device *dev, int val) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + + if (dhd) + dhd->pub.dtim_skip = val; + + return 0; +} + +int net_os_rxfilter_add_remove(struct net_device *dev, int add_remove, int num) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + char *filterp = NULL; + int ret = 0; + + if (!dhd || (num == DHD_UNICAST_FILTER_NUM)) + return ret; + if (num >= dhd->pub.pktfilter_count) + return -EINVAL; + if (add_remove) { + switch (num) { + case DHD_BROADCAST_FILTER_NUM: + filterp = "101 0 0 0 0xFFFFFFFFFFFF 0xFFFFFFFFFFFF"; + break; + case DHD_MULTICAST4_FILTER_NUM: + filterp = "102 0 0 0 0xFFFFFF 0x01005E"; + break; + case DHD_MULTICAST6_FILTER_NUM: + filterp = "103 0 0 0 0xFFFF 0x3333"; + break; + default: + return -EINVAL; + } + } + dhd->pub.pktfilter[num] = filterp; + return ret; +} + +int net_os_set_packet_filter(struct net_device *dev, int val) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + int ret = 0; + + /* Packet filtering is set only if we still in early-suspend and + * we need either to turn it ON or turn it OFF + * We can always turn it OFF in case of early-suspend, but we turn it + * back ON only if suspend_disable_flag was not set + */ + if (dhd && dhd->pub.up) { + dhd_os_proto_block(&dhd->pub); + if (dhd->pub.in_suspend) { + if (!val || (val && !dhd->pub.suspend_disable_flag)) + dhd_set_packet_filter(val, &dhd->pub); + } + dhd_os_proto_unblock(&dhd->pub); + } + return ret; +} + + +void +dhd_dev_init_ioctl(struct net_device *dev) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + + dhd_preinit_ioctls(&dhd->pub); +} + +#ifdef PNO_SUPPORT +/* Linux wrapper to call common dhd_pno_clean */ +int +dhd_dev_pno_reset(struct net_device *dev) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + + return (dhd_pno_clean(&dhd->pub)); +} + + +/* Linux wrapper to call common dhd_pno_enable */ +int +dhd_dev_pno_enable(struct net_device *dev, int pfn_enabled) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + + return (dhd_pno_enable(&dhd->pub, pfn_enabled)); +} + + +/* Linux wrapper to call common dhd_pno_set */ +int +dhd_dev_pno_set(struct net_device *dev, wlc_ssid_t* ssids_local, int nssid, + ushort scan_fr, int pno_repeat, int pno_freq_expo_max) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + + return (dhd_pno_set(&dhd->pub, ssids_local, nssid, scan_fr, pno_repeat, pno_freq_expo_max)); +} + +/* Linux wrapper to get pno status */ +int +dhd_dev_get_pno_status(struct net_device *dev) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + + return (dhd_pno_get_status(&dhd->pub)); +} + +#endif /* PNO_SUPPORT */ + +int net_os_send_hang_message(struct net_device *dev) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + int ret = 0; + + if (dhd) { + if (!dhd->pub.hang_was_sent) { + dhd->pub.hang_was_sent = 1; + ret = wl_iw_send_priv_event(dev, "HANG"); + } + } + return ret; +} + +void dhd_bus_country_set(struct net_device *dev, wl_country_t *cspec) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + + if (dhd && dhd->pub.up) + memcpy(&dhd->pub.dhd_cspec, cspec, sizeof(wl_country_t)); +} + +char *dhd_bus_country_get(struct net_device *dev) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + + if (dhd && (dhd->pub.dhd_cspec.ccode[0] != 0)) + return dhd->pub.dhd_cspec.ccode; + return NULL; +} + +void dhd_os_start_lock(dhd_pub_t *pub) +{ +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) + dhd_info_t *dhd = (dhd_info_t *)(pub->info); + + if (dhd) + mutex_lock(&dhd->wl_start_lock); +#endif +} + +void dhd_os_start_unlock(dhd_pub_t *pub) +{ +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) + dhd_info_t *dhd = (dhd_info_t *)(pub->info); + + if (dhd) + mutex_unlock(&dhd->wl_start_lock); +#endif +} + +static int +dhd_get_pend_8021x_cnt(dhd_info_t *dhd) +{ + return (atomic_read(&dhd->pend_8021x_cnt)); +} + +#define MAX_WAIT_FOR_8021X_TX 10 + +int +dhd_wait_pend8021x(struct net_device *dev) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + int timeout = 10 * HZ / 1000; + int ntimes = MAX_WAIT_FOR_8021X_TX; + int pend = dhd_get_pend_8021x_cnt(dhd); + + while (ntimes && pend) { + if (pend) { + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(timeout); + set_current_state(TASK_RUNNING); + ntimes--; + } + pend = dhd_get_pend_8021x_cnt(dhd); + } + return pend; +} + +#ifdef DHD_DEBUG +int +write_to_file(dhd_pub_t *dhd, uint8 *buf, int size) +{ + int ret = 0; + struct file *fp; + mm_segment_t old_fs; + loff_t pos = 0; + + /* change to KERNEL_DS address limit */ + old_fs = get_fs(); + set_fs(KERNEL_DS); + + /* open file to write */ + fp = filp_open("/tmp/mem_dump", O_WRONLY|O_CREAT, 0640); + if (!fp) { + printf("%s: open file error\n", __FUNCTION__); + ret = -1; + goto exit; + } + + /* Write buf to file */ + fp->f_op->write(fp, buf, size, &pos); + +exit: + /* free buf before return */ + MFREE(dhd->osh, buf, size); + /* close file before return */ + if (fp) + filp_close(fp, current->files); + /* restore previous address limit */ + set_fs(old_fs); + + return ret; +} +#endif /* DHD_DEBUG */ + +int dhd_os_wake_lock_timeout(dhd_pub_t *pub) +{ + dhd_info_t *dhd = (dhd_info_t *)(pub->info); + unsigned long flags; + int ret = 0; + + if (dhd) { + spin_lock_irqsave(&dhd->wl_lock, flags); + ret = dhd->wl_packet; +#ifdef CONFIG_HAS_WAKELOCK + if (dhd->wl_packet) + wake_lock_timeout(&dhd->wl_rxwake, HZ); +#endif + dhd->wl_packet = 0; + spin_unlock_irqrestore(&dhd->wl_lock, flags); + } + /* printk("%s: %d\n", __FUNCTION__, ret); */ + return ret; +} + +int net_os_wake_lock_timeout(struct net_device *dev) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + int ret = 0; + + if (dhd) + ret = dhd_os_wake_lock_timeout(&dhd->pub); + return ret; +} + +int dhd_os_wake_lock_timeout_enable(dhd_pub_t *pub) +{ + dhd_info_t *dhd = (dhd_info_t *)(pub->info); + unsigned long flags; + + if (dhd) { + spin_lock_irqsave(&dhd->wl_lock, flags); + dhd->wl_packet = 1; + spin_unlock_irqrestore(&dhd->wl_lock, flags); + } + /* printk("%s\n",__func__); */ + return 0; +} + +int net_os_wake_lock_timeout_enable(struct net_device *dev) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + int ret = 0; + + if (dhd) + ret = dhd_os_wake_lock_timeout_enable(&dhd->pub); + return ret; +} + +int dhd_os_wake_lock(dhd_pub_t *pub) +{ + dhd_info_t *dhd = (dhd_info_t *)(pub->info); + unsigned long flags; + int ret = 0; + + if (dhd) { + spin_lock_irqsave(&dhd->wl_lock, flags); +#ifdef CONFIG_HAS_WAKELOCK + if (!dhd->wl_count) + wake_lock(&dhd->wl_wifi); +#endif + dhd->wl_count++; + ret = dhd->wl_count; + spin_unlock_irqrestore(&dhd->wl_lock, flags); + } + /* printk("%s: %d\n", __FUNCTION__, ret); */ + return ret; +} + +int net_os_wake_lock(struct net_device *dev) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + int ret = 0; + + if (dhd) + ret = dhd_os_wake_lock(&dhd->pub); + return ret; +} + +int dhd_os_wake_unlock(dhd_pub_t *pub) +{ + dhd_info_t *dhd = (dhd_info_t *)(pub->info); + unsigned long flags; + int ret = 0; + + dhd_os_wake_lock_timeout(pub); + if (dhd) { + spin_lock_irqsave(&dhd->wl_lock, flags); + if (dhd->wl_count) { + dhd->wl_count--; +#ifdef CONFIG_HAS_WAKELOCK + if (!dhd->wl_count) + wake_unlock(&dhd->wl_wifi); +#endif + ret = dhd->wl_count; + } + spin_unlock_irqrestore(&dhd->wl_lock, flags); + } + /* printk("%s: %d\n", __FUNCTION__, ret); */ + return ret; +} + +int net_os_wake_unlock(struct net_device *dev) +{ + dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev); + int ret = 0; + + if (dhd) + ret = dhd_os_wake_unlock(&dhd->pub); + return ret; +} + +unsigned long dhd_os_spin_lock(dhd_pub_t *pub) +{ + dhd_info_t *dhd = (dhd_info_t *)(pub->info); + unsigned long flags = 0; + + if (dhd) + spin_lock_irqsave(&dhd->dhd_lock, flags); + + return flags; +} + +void dhd_os_spin_unlock(dhd_pub_t *pub, unsigned long flags) +{ + dhd_info_t *dhd = (dhd_info_t *)(pub->info); + + if (dhd) + spin_unlock_irqrestore(&dhd->dhd_lock, flags); +} |